D  A  I  L  Y     P  R  O  C  R  A  M  M  E 

PE& 

OF   THE 

SE  VENTEENTII  MEETING 


A  M  E  R  i  c:  A  N    ASSOCIATION 


ADVANCEMENT  OF  SCIENCE, 


WEDNESDAY,   AUGUST  5,    iS6S, 


CITY  OK  CHICAGO,  'ILLINOIS. 


C  ii  i  c  A  <;  o  : 

Church*  (iooilinan  and  Donnelley.  Pi-inters  to  the  Academy  of  Sciences. 

"1868. 


Officers   of   the   Chicago   Meeting. 


DB.  B.   A.  GOULD, 

COL.  CHARLES  WIHTILESEY,  - 

PROF.  JOSEPH   LOVERING,    - 

I'ROK.   A.  P.   ROCKWELL, 

UK.  A.   I..   ELWYN, 


President 

\'ii'i'-I'icxiilnii. 
I'fi  nuineii  t  Xevrelm  >/. 
I rent-nil  Se<-r<-t<n  i/. 
Treuxurer. 


STANDING  COMMITTEE. 


DK.  B.  A.  GOULD. 
COL.  CHARLES  WHITTLESEY. 
PKUK.  .JOSEPH  COVERING. 
PKOK.   A.   P.  ROCKWELL. 


PROF.  J.  S.  XEWBERRY. 
PROF.   WOLCOTT  (.IIHIS 
PROF.  C.  S.   I-YMAN 
DR    A.  L.   ELWYX. 


LOCAL  COMMITTEE. 

HON.  J.  YOt'NG  SCAMMON,   Chairman. 
DR.  WILLIAM  STIMPSON,  Setwetitry. 


I'ROF.  EDMUND  ANDREWS. 
COL.  J.  F.  BEATY. 
PROF.  J.  V.  Z.  BLANEY. 
E.  W.  BLATCHFORD,  ESQ. 
Lf.-Gov.  WM.  BROSS. 
E.  S.  CHESBROUGH,  ESQ. 
COL.  EDWARD  DANIELS. 
WM.  E.  DOGGETT,  ESQ. 
COL.  J.  W.  FOSTER. 
DAVID  A.  GAGE,  ESQ. 
DR.  WALTER  HAY. 


HON.  E.  B.  McCAGG. 

Dit.  JOHN  H.  RAUCH. 

CHARLES  H.   REED,   ESQ. 

HON.  J.  B.   RICE. 

PROF.  T.  H.  SAFKORD. 

E.  H.   SHELDON,  ESQ. 

PERRY  H.  SMITH,  ESQ. 

DANIEL  THOMPSON,  KSQ. 

GEORGE  C.  WALKER,   ESQ. 

HON.  C.  L.  WILSON. 

DK.  JOHN  M.  WOODWORTH. 


LOCAL   SUB-COMMITTEES. 

ON  RECEPTION—  MESSRS.  RAUCH,  SAFFORD,  McCAGG,  RICE  A.M.  IMtOSS. 

ON   LODGING  AND   ENTERTAINMENT  —  MKSSKS.    SCAMMON,    McCAGG,    DOGGETT.    l!R"i*^, 
THOMPSON,  GAGE  AND  HAY. 

ON  ROOMS  — MESSRS.  BLANEY,  WALKER  AND  ANDREWS. 
O»  FINANCB  —  MESSRS.  DOGGETT,  WALKER,  BEATY  AXI>   liltOSS. 

ON  EXCURSIONS  — MESSKS.  DANIELS,   SHELDON,    BEATY,    BLATCIIFOUD,    WILSON    AND 

SMITH. 

ON    INVITATION,    CORRESPONDBNCB    AND    PRINTING  —  MESSRS.    HAY,    WOOMWOKTII    ANI> 

STIMPSON. 

Os  RAILROADS— MESSRS.  CHESBROUGH,  FOSTER,  SHELDON  AND  BLANEY. 


RULES  OF  MEMBERSHIP. 


u  RULE  i.  Members  of  scientific  societies  or  learned  bodies 
having  in  view  any  of  the  objects  of  this  Association,  and  publish- 
ing transactions,  shall  be  considered  [permanent]  members  on 
subscribing  to  these  rules. 

"  RULE  2.  Collegiate  pi'ofessors,  also  civil  engineers  and 
architects,  who  have  been  employed  in  the  construction  or  super- 
intendence of  public  works,  may  become  [permanent]  members 
on  subscribing  to  these  rules. 

"  RULE  3.  Persons  not  embraced  in  the  above  provisions  may 
become  members  of  the  Association  upon  recommendation  in 
writing  by  two  members,  nomination  by  the  Standing  Committee, 
and  election  by  a  majority  of  the  members  present. 

"  Resolution  9.  Associate  members  may  be  admitted  for  one, 
two,  or  three  years,  as  they  shall  choose  at  the  time  of  admis- 
sion —  to  be  elected  in  the  same  way  as  permanent  members,  and 
to  pay  the  same  dues.  They  shall  have  all  the  social  and  scien- 
tific privileges  of  members,  without  taking  part  in  the  business." 

The  admission  fee  of  new  members  is  five  dollars,  in  addition 
to  the  annual  subscription,  which,  including  the  price  of  the 
volume  of  Proceedings,  is  three  dollars  for  all  members.  These 
dues  should  be  paid  at  as  early  a  period  as  possible.  They  will 
be  received  by  the  Permanent  Secretary,  at  the  office  of  the  Local 
Committee.  According  to  Rule  21  of  the  Constitution,  no  per- 
son shall  be  considered  a  member  until  the  dues  for  the  meeting 
are  paid. 


NOTICE. 


The  general  sessions  will  be  held  in  Library  Hall,  which  has 
been  generously  placed  at  the  disposal  of  the  Local  Committee 
by  the  Young  Men's  Library  Association.  This  hall  is  situated 
in  Metropolitan  Block,  corner  of  LaSalle  and  Randolph  streets. 
The  sections  will  meet  in  two  smaller  halls  in  the  same  building. 
The  sections  of  Mathematics,  Physics  and  Chemistry  will  meet 
in  Caledonian  Hall,  and  the  section  of  Natural  History  in  the  hall 
formerly  occupied  by  the  Academy  of  Sciences. 

The  public  generally  are  invited  to  attend  the  meetings,  both 
general  and  sectional.  Foreign  scientific  gentlemen,  who  may  be 
in  the  city,  are  particularly  invited  to  attend,  and  to  make  them- 
selves known  to  the  Local  Committee. 

The  Local  Committee  will  be  in  attendance  at  their  room  in 
the  Sherman  House,  adjoining  the  room  of  the  Permanent  Secre- 
tary—  the  members  of  the  committee  being  distinguished  by  a 
badge,  in  order  that  they  may  be  easily  found  by  those  desiring 
information.  Each  member  of  the  committee  will  be  provided 
with  a  list  of  hotels,  with  the  reduced  rates  at  which  some  of  them 
offer  accommodations. 

Members,  and  those  who  wish  to  become  members,  are  re- 
quested, on  th'eir  arrival  in  Chicago,  to  proceed,  as  soon  as  con- 
venient, to  the  office  of  the  Local  Committee,  to  register  their 
names,  professions,  residences,  the  routes  of  travel  by  which  they 
have  reached  the  city,  and  (as  soon  as  may  be)  their  place  of 
abode.  At  this  office  they  will  be  furnished  with  their  "mem- 
bers' tickets"  and  other  documents,  and  with  a  map  of  the  city. 

Letters  directed  to  the  care  of  the  Association,  may  be  found  at 
the  office  of  Mr.  Robson,  Librarian  of  the  Y.  M.  Association,  on 
the  same  floor  with  Library  Hall. 

THE  I)AILY  PROGRAMME  will  be  ready  for  distribution  in 
Library  Hall,  at  the  convening  of  the  general  session,  each  day  at 
10,  A.M.  Or,  it  may  be  subsequently  found  at  the  Librarian's 
office. 

The  Reading  Room  of  the  Young  Men's  Association,  contain- 
ing the  chief  daily  papers  and  other  periodical  literature  of  the 
country  will  be  open  to  the  members  during  the  week  of  tin- 
meeting. 


The  following  Institutions  and  places  of  interest  will  be  open 
to  the  visits  of  the  members  of  the  Association  during  their  stay 
in  the  city.  They  may  be  visited  by  the  Association  in  a  body, 
or  by  the  members  singly.  In  the  latter  case,  the  member's 
ticket  will  secure  admittance  when  any  such  ticket  is  required. 

THE  UNIVERSITY  OF  CHICAGO. 


This  Institution  is  situated  on  Cottage  Grove  Avenue,  beyond 
Thirty-Third  Street,  and  is  built  upon  land  given  by  the  late 
Senator  Douglas.  Though  established  but  about  ten  years,  it 
now  ranks  as  one  of  the  leading  universities  of  the  Northwest, 
and  is  rapidly  acquiring  all  the  essentials  of  a  complete  institution. 


THE  DEARBORN  OBSERVATORY. 


This  forms  the  Astronomical  Department  of  the  University.  Its 
objects  are  to  make  original  researches  in  Astronomical  Science,  to 
assist  in  the  application  of  Astronomy  to  Geography,  and  other 
useful  objects,  and  to  furnish  instruction  in  Astronomy  to  the 
students  of  the  University,  both  those  in  the  regular  course  and 
those  who  wish  to  give  special  attention  to  the  study. 

The  principal  instrument  of  the  Observatory,  at  present,  is  the 
great  Equatorial  Refractor,  by  Alvan  Clark  and  Sons,  of  Cam- 
bridge, Mass.,  the  largest  telescope  in  this  country.  This  instru- 
ment is  placed  in  the  Dearborn  Tower,  built  by  the  munificence 
of  the  Hon.  J.  Young  Scammon,  LL.D.  The  dimensions  of  the 
Equatorial  are  : 

Diameter  of  Declination  Circle,  30  inches. 

Diameter  of  Hour  Circle,  22  inches. 

Focal  Length  of  Object  Glass,  23  feet. 

Aperture  of  Object  Glass,  i&£  inches. 

The  circles  are  read  by  two  microscopes  each,  the  hour  circle 
to  seconds  of  time,  and  the  declination  circle  to  ten  seconds  of 
space.  The  Observatory  has  also  a  chronometer  (Wm.  Bond  and 
Son,  No.  279),  and  a  small  astronomical  library. 

A  meridian  circle  of  the  first  class  has  been  constructed  by  those 
eminent  artists,  Messrs.  A.  Repsold  and  Sons,  of  Hamburg,  and 
is  now  on  its  way  to  Chicago.  This  instrument  has  a  telescope 


of  six  French  inches  aperture,  and  divided  circles  of  forty  inches 
diameter ;  otherwise  it  is  like  Bessel's  celebrated  Konigsberg 
circle,  by  the  same  makers,  with  some  late  improvements  in  the 
illumination  of  the  field  and  the  wires,  and  with  apparatus  for 
recording  declinations,  a  new  invention  of  the  makers. 


ACADEMY  OF  SCIENCES. 


THE  Academy  of  Sciences  is  situated  on  the  rear  of  lot  No. 
263  Wabash  Avenue,  between  Van  Buren  and  Jackson  Streets. 
The  building,  which  was  finished  early  the  present  year,  is  fifty- 
five  feet  by  fifty,  fire-proof,  and  very  strongly  built,  though  plain 
in  external  appearance,  as  it  will  eventually  form  only  an  adjunct 
to  a  larger  and  finer  building  to  be  erected  on  the  front  of  the  lot, 
which  is  owned  by  the  Academy.  The  first  two  stories  contain 
the  library,  work  rooms,  offices,  etc.,  while  the  upper  story  forms 
the  museum,  which  is  twenty-eight  feet  high,  and  surrounded  by 
two  galleries.  The  Academy  was  organized  on  its  present  basis 
in  1865.  The  nucleus  of  the  collection  of  Natural  History  was 
furnished  by  the  Smithsonian  Institution,  from  the  rich  results  of 
the  Arctic  Explorations  of  the  late  Major  Kennicott.  The  col- 
lection was  partially  destroyed  by  fire  in  1866,  but  the  losses  have 
been  since  more  than  made  up.  A  considerable  portion  of  the 
specimens  has  been  allowed  to  remain  packed  in  the  store  rooms 
of  the  Academy,  as  it  was  found  that  those  displayed  in  the  cases 
suffered  greatly  from  the  dampness  which  still  exudes  from  the 
thick  walls  of  the  building. 


CHICAGO   WATER    WORKS. 


THE  Water  Works  consist  of  the  Pumping  Works,  the  Lake 
Tunnel,  and  the  Distributing  Pipes. 

The  machinery  for  pumping  consists  of  three  engines  and 
pumps,  capable  of  delivering  respectively  18,000,000,  12,000,000. 
and  8,000,000  gallons  of  water  daily.  Only  two  of  the  engines 
are  ever  worked  at  a  time,  it  being  necessary  to  hold  one  in  reserve 
for  repairs. 


The  engine  house,  when  completed,  will  be  about  i^o  feet  long. 
The  main  portion,  or  center  of  the  building,  and  the  north  wing, 
are  now  in  use.  They  are  of  Athens  marble,  in  the  castelated 
style,  and,  together  with  the  Water  Tower,  present  an  imposing 
appearance  from  the  neighboring  streets.  The  Water  Tower  is 
about  1 60  feet  high,  and  contains  a  stand  pipe  about  140  feet  high. 
and  three  feet  in  diameter.  The  object  of  the  tower  is  to  protect 
the  stand  pipe,  which  itself  serves  as  a  safety  valve  to  the  pumps. 

The  entire  cost  of  the  Pumping  Works,  Lake  Tunnel,  Water 
Tower,  and  connections,  when  completed,  will  be  a  little  short  of 
one  million  of  dollars. 

The  Chicago  Lake  Tunnel  was  constructed  in  order  to  obtain 
water  not  affected  by  the  impurities  of  the  river,  which  at  times 
used  to  render  the  supply  exceedingly  offensive.  The  shore 
water  was  often  rendered  very  turbid  by  the  northeasterly  winds ; 
but  except  when  the  storms  are  very  protracted,  the  water  now 
used  by  the  city  is  clear. 

The  Tunnel  is  two  miles  long,  five  feet  wide,  and  five  feet  two 
inches  high,  internal  dimensions.  The  lining  is  brick  masonry, 
about  nine  inches  thick,  laid  in  hydraulic  cement.  The  entrance 
to  the  outer  end  of  the  tunnel  is  through  a  cast  iron  shaft,  nine 
feet  interior  diameter,  and  two  and  a  quarter  inches  thick,  origi- 
nally made  in  seven  sections,  each  nine  feet  long.  This  shaft  is 
provided  with  two  gates,  near  its  top,  for  admitting  or  excluding 
the  water,  and  is  protected  from  injury  by  a  pentagonal  break- 
water or  crib.  This  crib  measures  about  fifty-eight  feet  on  a  side, 
externally,  and  has  an  open  well  of  about  thirty  feet  diameter, 
within  ;  the  thickness  of  the  wall  between  the  well  and  the  out- 
side of  the  crib  being  twenty-five  feet.  It  consists  of  a  very 
heavy  frame  of  timber,  filled  in  with  loose  stone.  About  one- 
quarter  of  the  tunnel  was  excavated  and  lined  from  this  end, 
and  the  remainder  from  the  shore  shaft,  near  the  Pumping  Works. 
The  whole  work  wris  constructed  in  three  years.  The  tunnel 
was  calculated  to  deliver  54,000,000  U.  S.  gallons  daily,  under  a 
head  of  18  feet,  or  enough  to  supply  one  million  of  inhabitants 
with  more  than  the  average  rate  of  consumption  at  the  time  the 
work  was  commenced.  Actual  experience  shows  that  it  is  capa- 
ble of  doing  more. 


ARTESIAN  WELL. 


THK  Artesian  Well,  at  the  Western  Limits  of  the  citv,  near 
Chicago  Avenue,  is  about  seven  hundred  feet  deep,  and  nearly  live 
^inches  in  diameter,  through  limestone,  and  discharges  daily  up- 
wards of  half  a  million  gallons  of  very  clear,  palatable  water,  hav- 
ing a  very  slight  taste  and  odor  of  sulphur,  and  said  to  contain 
about  fifty-six  grains  of  solid  matter  to  the  U.  S.  gallon.  There  are 
really  two  wells  here,  very  near  together,  the  first  was  about  four 
inches  in  diameter,  and  was  bored  for  the  purpose  of  finding  oil. 
It  was  supposed  that  the  second  well  would  produce  a  correspond- 
ing increase  in  the  discharge  of  the  water,  but  though  there  was 
a  decided  increase,  it  did  not  meet  previous  expectation.  Obser- 
vations made  with  a  pressure  gauge,  when  the  mouth  of  the  well 
was  stopped  —  rather  imperfectly  —  show  that  the  sources  of  this 
water  must  be  at  least  one  hundred  feet  above  the  lake,  and 
probably  much  more. 

At  the  Union  Stock  Yards,  a  little  south  of  the  Southern 
Limits,  there  is  another  Artesian  Well,  upwards  of  one  thousand 
feet  deep,  affording  a  very  copious  supply  of  water. 


THE  HISTORICAL  SO  CIE  TT 'S  B  UILDING  AND 
COLLECTION, 

THE  RUSH  MEDICAL   COLLEGE, 

THE   WA  SHING  TON  S  TREE  T  TUNNEL , 

THE  STOCK  TARDS, 

THE  COURT  HOUSE  AND  ITS  OBSER  VA  TORT, 

FLINT  AND  THOMPSON'S  ELE  VA  TORS. 


PROGRAMME 


WEDNESDAY,   AUGUST  $th,    1868. 


MORNING. 

1.  Opening    of   the    Meeting   by  Dr.    NEWBERRY, 

the  retiring  President,  who  will  introduce  Dr. 
B.  A.  GOULD,  President  of  the  Association 
for  the  Chicago  Meeting. 

2.  Prayer  by  the  Rev.  Dr.  R.  W.  PATTERSON. 

3.  Address    of    Welcome    to    the    Association,   by 

Hon.  J.  Y.  SCAMMON,  Chairman  of  the  Local 
Committee. 

4.  Reply  to    the    Address  of  Welcome,  by    Presi- 

dent  GOULD. 

5.  Election  of  Members  to  till  the  Standing  Com- 

mittee. 

6.  Organization  of  the    Sections. 

7.  Reading  of    Papers    in    the    General    and    Sec- 

tional Meetings. 

\ 

EVENING. 

8.  Entertainment  at   the    Tremont  House,  at    half- 

past  eight,  given  by  JOHN  B.  DRAKE,  Esq. 


TITLES    OF  PAPERS    ALREADY  ENTERED. 


1.  On  the  Application  of  Electricity  to  the  Maintenance  of  the 

Vibrations  of  the  Tuning-fork  ;   and  of  the  Tuning-fork  to 
the  Excitement  of  Vibrations  in  Cords  and  Threads. 

By  JOSEPH  LOVERING. 

2.  On  the  Leaves  of  Coniferous  Plants.    -By  THOMAS  MEEHAN. 

3.  On  the  Genus  of  extinct  Sea-Saurians,  Elasmosatints. 

By  EDWARD  D.  COPE. 

4.  On    the    Geology    of    the    Mississippi    Delta,    and     the    Salt 

Deposit  of  Petite  Anse.  By  EUGENE  W.  HIKGAKD. 

5.  On  the  Theory  of  Luminous  Hydrocarbon  Flames. 

By  EUGENE  \V.  HILGARD. 

6.  On  the  Artistic  Evidence  of  the  Remote  Colonization  of  the 

North-Western  or  American  Continent  by  Maritime  People 
of  Distinct  Nationalities  before  the  Modern  Era. 

By  J.  H.  GIBBON. 

7.  Effect  of  Atmospheric  Changes  on  the  Eruptions  of  the  great 

Geyser  of  Iceland.  By  P.  A.  CHADBOUKXE. 

8.  On  the  Action  of  Light  upon  Bromate  and  Iodide  of  Silver. 

By  M.  C.  LEA. 

9.  Notes  on  the  Defects  of  Lightning  Rods. 

By  JAMES  BUSHER. 

10.  On  the  Boulder  Field  in  Cedar  County,  Iowa. 

By  RUSH  EMERY. 

1 1.%  Steam  Boilers  and  the  Various  Causes  assigned  for  their 
Explosions.  Illustrated  by  Facts,  Drawings  and  Experi- 
ments. B\  JOSEPH  A.  MJJ.LRR. 

12.  Phases  of  Glacial  Action  in  Maine  at  the  Close  of  the  Drift 

Period.  By  N.  T.  TRUE. 

13.  Some  Experiments  on  the  Influence  of  the  Physical  Condition 

upon  the  Personal  Equation,  in  Transit^  Observations. 

By  \V.  A.  ROGERS. 


1 1 

14.  A  New  Formula  tor  the  Reduction  of  Observations  in  the 
Prime  Vertical,  analagous  to  the  Formula  for  the  Reduction 
of  Meridian  Observations.  By  W.  A.  ROGERS. 

iv  The  Statics  of  the  Four  Types  of  Modern  Chemistry,  with 
Special  Regard  to  the  Water  Type  >  o 

By  GUSTAVUS  HINRICHS. 

1 6.  A  New  and  General   Law,  determining  the  Atomic  Volume 

and  Boiling  Point  of  a  great  number  of  Carbon  Compounds. 

By  GUSTAVUS  HINRICHS. 

17.  The  Calculation  of  the  Crystalline  Form  of  the  Anhydrous 

Carbonates,  Nitrates,  Sulphates,  Perchlorates,  Perman- 
ganates, and  other  Salts  of  the  Composition  A  B3  C,  or 
A  B4  C.  By  GUSTAVUS  HINRICHS. 

18.  Supplementary  Notes  on  Gold-Genesis.     By  HENRY  WURTZ. 

19.  Some  New  Facts  and  Views  concerning  Aluminum. 

By  HENRY  WURTZ. 

20.  Upon  the  Ammonoosac  Gold  Field  in  New  Hampshire. 

By  HENRY  WURTZ. 

21.  A  Few  Reclamations  of  Priority.  By  HENRY  WURTZ. 

22.  On    a    Suspected     Unknown     Element    in     the     Laurentian 

Magnetites.  By  HENRY  WURTZ. 

23.  On  the  Nature  of  Metallicity.  By  HENRY  WURTZ. 

24.  Studies  of  the  Red  Sand  Stones  of  the  Atlantic  Slopes,  and 

their  enclosed  Igneous  Masses.  By  HENRY  WURTZ. 

25.  Note  upon  the  Pal&otrockis.  By  HENRY  WURTZ. 

26.  Studies  in  Chemical  Geogony.     In  Three  Parts  : 

I.  On  the  Prozoic   Atmosphere   and  the   Ocean  of  the 

Zoic  Dawn. 

II.  Zoic  History,  from  a  Chemical  View-Point. 

III.  Chemical  Revelations  of  the  Final  Zoic  Catastrophe. 

By  HENRY  WURTZ. 

27.  A  New  Physio-Geographical  Explanation  of  the  Tides,  etc. 

By  THEODORE  C.  HILGARD. 

28.  Bibliography  of  Entomology  in  the  United  States  and  Canada, 

since  1862.  By  JOHN  G.  MORRIS. 


1.  JOSEPH  LOVERING.  Professor,  Cambridge,  Mass.  —  Sherman 
House. 

2.  FRANKLIN   B.   HOUGH.   Statistician,  Lowvillc.  N.  Y. 

3.  CHARLES    WHITTLES  KY.     Geological     and     Mining     Eng., 
Cleveland,  O. 

4.  JOHN   L.  HAYES.  Secretary  Nat.  Assoc.  of  Wool  Growers, 
Cambridge,  Mass.  • 

5.  THEO.  GILL,  Librarian  of  Smithsonian   Institute,  Washing- 
ton. D.  C. —  Win.  A.  Doggett.  Esq.,  316  Michigan  Ave. 

6.  W.  CHAUVENET,   Professor.  St.  Louis  —  Alex.  Officer,  Esq. 

7.  JAMES  W.  HARRIS.  Asst.   Sec.  of   the  Assoc.,  Cambridge, 
Mass.  —  Orient  House. 

8.  Louis    FKUCHTWANGKR,    Chemist   and   Mineralogist,  New 
York  —  Sherman  House.  Room  40. 

'9.  A.  B.  ENGSTROM,  Artist,  Burlington,  N/J. — Sherman  House. 

10.  HEXRY  L.  EUSTIS,  Professor,  Cambridge,  Mass. — Sherman 
House. 

11.  CLEVELAND  ABBE,  Astronomer,  Cincinnati.  Ohio  —  S.  C. 
Griggs.  Esq..  204  Michigan  Ave. 

12.  HORACE  McMuRTR IE,  Engineer,  Boston,  Mass. —  Sherman 
1  louse. 

13.  O.  N.  ADAMS,  Naturalist,  LaSalle,  111. 

14.  JOSEPH  P.  ROCKWELL,  Mining  Engineer,  New  Haven,  Conn. 

15.  ALFRED    P.   ROCKWELL.    Prof,    of  Mining.   New   Haven, 
Conn.  —  returned  home. 

16.  B.   A.   GOULD,    Astronomer,    Cambridge.    Mass.  —  E.  B. 
McCagg.  Esq. 

17.  J.  C.  WINSLOW,  Physician.  Danville,  111.  —  Dr.  Pierce,  323 
West  Randolph. 

iS.   WM.  J.   BEAL.     Professor,   Union     Springs.  N.  Y.  —  Mrs. 
Francis.  270  Wabash  Ave. 

19.  JAMES    HYATT,    Naturalist,    Bangall,    N.  Y.  —  Sherman 
House.  Room  119. 

20.  JOSEPH  KIRKLAND.  Coal  Miner,  Danville,  111. —  157  North 
Dearborn  Street. 


THURSDAY,    AUGUST   6M,    1868. 

MORNING. 
General  Session  in  Library  Hall  at  Ten  o'clock. 

Meetings  of  the  Sections  in  their  Halls  in  Metro- 
politan Block,  at  One  o'clock. 

• 

EVENING. 

Eulogy  on  ALEXANDER  DALLAS  BACHE,  by  President 
GOULD,  at  Library  Hall,  at  Halt-past  Seven 
o'clock. 

Entertainment  to  be  given  the  Members  of  the  Asso- 
ciation, their  Ladies  and  Friends,  at  the  house  of 
WM.  E.  DOGGETT,  Esq.,  316  Michigan  Avenue, 
at  Nine  o'clock^  To  this  entertainment  the  Mem- 
bers of  the  Academy  of  Sciences  are  invited. 


NO  TICES. 


Several  of  our  Railway  companies  having,  in  aid  of  scientific 
investigation,  generously  offered  to  grant  to'  Members  of  the  Asso- 
ciation passes  to  points  of  interest  on  their  respective  lines,  the 
Local  Committee  would  suggest  that  any  Members  of  the  Associa- 
tion who  may  desire  to  visit  such  points,  which  may  be  reached 
by  railroads  centering  in  Chicago,  will  hand  their  names  to  the 
Local  Secretary,  and  the  Committee  will  endeavor  to  procure 
passes  for  them. 

The  Members  of  the  Association,  with  their  ladies  and  friends, 
are  invited  by  JAMES  AITKEN,  Esq.,  to  visit  the  Opera  House  Art 
Gallery,  and  by  Messrs.  HOVEY  &  NICHOLS  to  visit  their  Art 
Gallery,  at  such  times  as  may  suit  their  individual  convenience 
—  the  "  Member's  ticket"  securing  admission. 


SECTION     A . 

MATHEMATICS.   PHTSICS,  AND  CHEMISTRY. 
MEETING  IN  CALEDONIAN  HALL. 

Chairman. 
PKOK.  WM.  CHAUVENET,  OF  ST.  Louis.. 

Secretary. 
PROF.  GEO.  F.   BARKER,  OK  NEW  HAVEN. 

Sectional  Committee. 

PROF.  T.   H.  SAFFORD,  OF  CHICAGO. 
PROF.   BENJ.  SILL1MAN.  OF  NEW  HAVEN. 
PIJOF.  E.  N.  HORSFORD,  OF  CAMBRIDGE. 


TITLES  OF  PAPERS 
For  Thursday^  Augvst  6,  1868,'  in  Section  A. 

1.  A  New  Formula   tor  the  Reduction   of  Observations   in   the 

Prime  Vertical,  anala^ous  to  the  Formula  for  the  Reduction 
of  Meridian  Observations.  By  W.  A.  ROGERS. 

2.  The   Statics  of  the  Four  Types  of  Modern   Chemistry,  with 

Special  Regard  to  the  Water  Type       !  o 

-  '      H  ) 

By  GUSTAVUS  HINIUCIIS. 

3.  ();i  the  Chemico-Geolpgical  Relations  of  the  Metals. 

Bv  T.  S.  Hi: XT. 

•  " 

4.  Some  New  I^acts  and  \'ie\\s  concerning  Aluminum. 

Bv  HENKV  Wririx. 


i6 

5.  Influence  of  the  Moon  upon  the  Weather.    By  ELIAS  LOOMIS. 

6.  The  Recent  Contributions  of  Science  to  the  Arts  of  Dyeing 

and  Printing  Woolen  Tissues.  By  JOHN  L.  HAYES. 

7.  Meteorolites  from  Mexico  and  Poland. 

By  Louis  FEUCHTW ANGER. 

8.  On  the  Combining  Power  of  the  Chemical  Elements. 

By  S.  D.  TILLMAN. 

9.  Some  Experiments  on  the  Influence  of  the  Physical  Condition 

upon  the  Personal  Equation,  in  Transit  Observations. 

By  W.  A.  ROGERS. 

10.  On    a    Suspected     Unknown     Element     in     the     Laurentian 

Magnetites.  By  HENRY  WURTZ. 

11.  The  Calculation  of  the  Crystalline  Form  of  the  Anhydrous 

Carbonates,  Nitrates,  Sulphates,  Perchlorates,  Perman- 
ganates, and  other  Salts  of  the  Composition  A  B3  C,  or 
A  B4  C.  By  GUSTAVUS  HINRICHS. 


SECTION     B. 

GEOLOGY  AND  NA  TURAL  HIS  TOR  Y. 
MEETING  IN  THE  ACADEMY  HALL. 

.     Chairman. 
PROF.  J.  D.  WHITNEY,  OF  CAMBRIDGE,  MASS. 

Secretary. 
PROF.  E.  D.  COPE,  OF  PHILADELPHIA,  PA. 

Sectional  Committee. 

A.  H.  WORTHEN,  OF  SPKIXGKIKI.D.   ILL. 
PROF.  O.  C.  MARSH,  OF  NEW  HAVEN.  CONN. 
PROF.  THEO.  GILL,  OF  WASHINGTON,  D.  C. 


TITLES  OF  PAPERS 
For  Thursday,  August  6,  1868,  in  Section  />. 

1.  On  the  Leaves  of  Coniferous  Plants.     By  THOMAS  MEEHAN. 

2.  On   the    Geology   of    the   Mississippi    Delta,   and     the    Salt 

Deposit  of  Petite  Anse.  By  EUGENE  W.  HILGAHD. 

3.  Effect  of  Atmospheric  Changes  on  the  Eruptions  of  the  gre.it 

Geyser  of  Iceland.  By  P.  A.  CHADBOURXE. 

4.  On  the  Boulder  Field  in  Cedar  County,  Iowa. 

By  RUSH  EMERY. 

5.  Supplementary  Notes  on  Gold-Genesis.     By  HENRY  WURTX. 

6.  Upon  the  Ammonoosac  Gold  Field  in  New  Hampshire. 

By  HENRY  WURTX. 

7.  On  Gold  in  the  Laurentian  Rocks  of  Canada. 

By  T.  S.  HUNT. 

8.  On  the  Gold  Region  of  Nova  Scotia.        '  By  T.  S.  HUNT. 

9.  Origin  of  the  Prairies.  By  J.  W.  FOSTER. 
10.  Exhibition    of  the    Crania    of   Boiitherium  and  Castoroides, 

with  Remarks  on  their  Geological  Position  and  their 
Living  Analogues.  By  J.  W.  FOSTER. 

n.  On  the  Stratigraphical  Relations  of  the  Fossil   Horse  in  the 
United  States.  By  CHARLES  WHITTLESEY. 

12.  Brief  Remarks  on  the  Botany,  Meteorology,  and  Geology  of 

Mount  Mansfield,  Vermont.  By  JAMES  HYATT. 

13.  The  Habitable  Features  of  the  North  American  Continental 

Plateau  near  the  Line  of  35°  Parallel  North  Latitude ; 
containing  a  General  Summary  of  Conclusions  derived 
from  a  Review  of  its  Aboriginal  Population  and  Natural 
Features.  By  C.  C.  PARRY. 

14.  Description  of  a  New  Species  of  Protichnites  from  the  Pots- 

dam Sandstone  of  New  York.  By  O.  C.  MARSH. 

15.  The  Progress  and  Present  Condition  of  the  Geological  Survey 

of  California.  By  J.  D.  WHITNEY. 

1 6.  The  Quebec  Group  in  Northern  New  Hampshire. 

By  C.  H.  HITCHCOCK. 

17.  On   the    Geological    Age    and    Equivalents   of    the    Marshall 

Group.  By  A.  WINCHELL. 

uS.    Further  Notice  of  Experiments  on   Snow  and   Ice  at  a  Tem- 
perature below  32°  F.  By  EDWARD  HUNGERKORD. 


ARRIVAL  ,V. 


21.  JOHN  DAVIS,  Professor,  Philadelphia,  Pa. 

22.  JOHN  WOODS,  Philadelphia,  Pa. 

23.  J.  L.  GRIMES,  Lawyer,  New  York. 

24.  GUSTAVUS  HINRICHS,  Professor,  Iowa  City. 

25.  BENJ.  SMITH  LYMAN,  Mining  Eng.,  Philadelphia.  Pa. 

26.  JOHN  G.  MORRIS,  Professor  of  Zoology,  Baltimore  —  Far- 
well  House. 

27.  E.     A.     DALRVMPLE,      Professor,      Baltimore  —  Sherman 
House. 

28.  GEORGE  A.  LEAKIN.  Baltimore — •  Sherman  House. 

29:  J.    H.     GIBBON,     Physician,    North     Carolina  —  Sherman 
House. 

30.  SAMUEL  D.   TILLMAN,    Secretary    of   American    Institute. 
New  York  —  Tremont  House. 

31.  SIMON     NEWCOMB.     Professsor    of    Mathematics,     United 
States  Observatory,  Washington. 

32.  CHAS.  AMES  SPENCER,  Professor  Polytechnic  List..  Brook- 
lyn. 

33.  WILLIAM   A.    ROGERS,   Professor   of  Mathematics.   Alfred 
University,  Alfred  Center,  N.Y. 

34.  WILLIAM     SAUNDERS.    Chemist.     London.     Canada  —  St. 
James'  Hotel. 

3v  NATH.  T.  TRUE,  Geologist  and  Mineralogist,  Bethel.  Me. — 
Farwell  House,  140  Madison  Street. 

36.  B.  SILLIMAN,  Chemist,  New  Haven.  Conn.  —  Mrs.  Pay  son. 
cor.  Clark  and  McCagg  Streets. 

37.  EDWARD  D.  COPE.  Professor,  Philadelphia.  Pa. 

38.  SAMUEL  W.  HILL,  Geologist  and  Mining  Engineer.   Lake 
Superior,  Mich. 

39.  E.  N.  HORSFORD.   Chemist,   dim-bridge.   Mass.  —  William 
E.  Doggett,  Esq.,  316  Michigan  Avenue. 

40.  JAMES  H.  EATON,  Prof.  Nat.  Sci..  Beloit.  Wis.  —  Sherman 
House. 

41.  THEO.  C.  HILGAKD,  Physician.  St.  Louis  — 484  Hubbard  St. 

42.  EUG.  W.  HILGARD,    Professor  of  Chemistry.  Oxford.  Miss. 
—  484  Hubbard  Street. 


43-  H.  C.  BOLTOX.  Student  of  Chemistry,  New  York  —  Sher- 
man House. 

44.  BENJ.    C.  JII.LSON.    Professor    of    Chemistry,    Pittsburg  — 
Farwell  House. 

45.  J.  D.  WHITXEY,  Professor  of  Geology,  Cambridge,  Mass. 

—  Sherman  House. 

46.  W.   D.   WHITNEY,   Professor  of    Linguistics.   New   Haven 

—  Geo.  O.  Cook,  Esq.,  Wabash  Avenue. 

47.  GEO.  W.  HOUGH,  Director  of  Dudley  Observatory,  Albany, 
N.Y.  —  Sherman  House. 

48.  H.   A.    NEWTON,    Professor  of  Mathematics.  New  Haven. 
Conn. 

49.  CHAS.   A.  JOY,  Professor  of  Chemistry,  Columbia  College. 
New  York  —  Prof.  Wheeler,  60^  Michigan  Avenue. 

50.  EDWARD  W.  ROOT,  Professor  of  Chemistry,  Hamilton  Col- 
lege, Clinton,  N.Y.  —  Sherman  House. 

51.  AMASA  McCov,  Professor,  Chicago. 

52.  JOHN  FOSTER,  Professor  of  Natural  Philosophy,  Union  Col- 
lege, Schenectady,  N.Y. 

53.  CHARLES  U.  SHEPARD,  Jr.,  Professor  of  Chemistry.  Medi- 
cal College  of  South  Carolina  —  Returned  home. 

54.  J.    S.    COPES,    President    of    New    Orleans    Academy   of 
Sciences,  New  Orleans  —  Wm.  E.  Doggett.  Esq.,  316  Michigan 
Avenue. 

55'.  GEORGE   LITTLE,  State   Geologist  of  Mississippi,  Oxford, 
Miss. 

56.  A.   N.  PRENTISS.    Professor  of  Botany  and    Horticulture, 
Lansing  Mich. 

57.  O.   C.  MARSH.   Professor  of   Palaeontology,   New   Haven, 
Conn. 

58.  GEORGE  F.  BARKER,  Professor  of  Physics  and  Chemistry. 
New  Haven,  Conn.  \ 

59.  ARTHUR  W.  WRIGHT,  Professor  of  Physics  and  Chemistry. 
Williamstown,  Mass. 

60.  EUGENE  S.  BRISTOL,  Chemist,  New  Haven,  Conn. 

61.  HERMAN     A.     HAGEN,    Entomologist,    Cambridge,  Mass. 
—  Hon.  J.  Y.  Scammon,  209  Michigan  Av. 

62.  Ki>\v.\i;i>  1  Ii  \(;KKKOKI>.  Professor  of  Geologv.  Burlington. 
Vt. 


20 

63.  CHAS.  A.  WHITE,  State  Geologist  of  Iowa,  Town  City.  Iowa 
—  Farwell  House. 

64.  C.  C.  PARRY,  Physician.  Davenport.  Iowa. 

65.  RUSH  EMERY.   Adj.   Professor  of  Chemistry   and   Physics. 
Iowa  City,  Iowa. 

66.  THOS.  MEEHAN,  Professor  of  Botany.  Philadelphia. 

67.  A.   J.    COOK,    Professor  of  Zoology.  Agricultural  College. 
Lansing,  Mich.  —  127  Third  Avenue. 

68.  E.  F.  HOBART.  Professor  of  Natural  History,  Beloit,  \Yis. 

69.  J.  L.  SMITH.  Professor  of  Chemistry,  Louisville.  Kv. 

70.  JOHN  E.  DAVIES.  Professor  of  Chemistry.  Madison.  Wis.— 
i  v^-  Indiana  Avenue. 

't  i. •  JOHN  COLLETT.  Farmer,  Eugene.  Ind.  —  Tremont  House. 

72.  JOSEPH  F.  TUTTLE,   President  of  Wahash   College.  Craw- 
fordsville.  Ind.  —  Tremont  House. 

73.  S.  H.  THOMPSON,  Professor  of  Mathematics,  Hanover  Col- 
lege, Jefferson  Co..  Ind.  —  Tremont  House. 

74.  W.  D.  HENKLE,  Superintendent  of  Public  Schools.  Salem. 
Ohio  —  Tremont  House. 

25-   B.  W.  McLAix.  Teacher  of  Natural  Science.  Fort  Wayne. 
Ind.  —  Briggs  House. 

76.  WM.  M.  CANBY,  Professor  of  Botany.  Wilmington.  Del. — 
Tremont  House. 

77.  W^M.  C.  WHITFORD.  Professor  of  Natural  Science.  Milton  — 
Farwell  House. 

78.  P.  A.  CHADBOURNE,  President  of  the  University  of  Wiscon- 
sin, Madison,  Wis.  —  476  Fulton  Street. 

79.  DANIEL  READ,  President  of  State   University  of  Missouri. 
Columbia.  Mo. —  Sherman  House. 

So.  W.  W.  DANIELS.  Professor  of  Agriculture,   Madison,  Wis. 
—  Revere  House. 

81.  ISAAC  FERRIS,  Chan.  Univ.,  New  York  City.  New  York  — 
L.  Viele.  Esq..  446  W.Jackson  Street. 

82.  A.  H.  WoitTiiKN.  State   Geologist  of  Illinois.   Springfield. 
111.  —  Chas.  Knickerbocker,  Esq.,  1141  Michigan  Avenue. 

83.  PHILIP  T.   TYSOX.  Geologist,  Baltimore — 504  West  Lake. 

84.  JOHN.  E.   CLARK,  Professor  of  Mathematics    and  Astron- 
omy, Antioch  College,  Yellow  Spa.  Ohio. 

85.  GEO.  F.  MAGOUN.  President  of  Iowa    College.    Grinnell. 
Iowa — P.  L.  Underwood.  ^26  Wabash  Avenue. 


PROGRAMME 


FRIDAY,    AUGUST   7^,    1868. 

The  General  Session  and  meetings  of  the  Sections 
will  be  held  in  the  First  Baptist  Church. 

MORNING. 

In  the  General  Session  the  "  Antiquity  of  Man"  will 
be  under  discussion,  and  several  Papers  will  be 
read  upon  the  subject. 

The  rooms  selected  for  the  meetings  of  the  Sections 
will  be  announced  at  the  close  of  the  General 
Session. 

EVENING. 

Entertainment  at  the  house  of  Dr.  N.  S.  DAVIS,  797 

Wabash  Avenue'. 


STANDING  COMMITTEE. 

DR.  B.  A.  GOULD.  PROF.  J.  S.  NEWBERRY. 

COL.  CHARLES  WHITTLESEY.  PROF.  WOLCOTT  GIBBS. 

PROF.  JOSEPH  LOVERING.  PROF.  C.  S.  LYMAN. 

PROF.  SIMON  NEWCOMB.  DR.  A.  L.   ELWYN. 

PROF.  H.  L.  EUSTIS.  PROF.  E.  H.  NEWTON. 

PROF.  P.  A.  P.  BARNARD.  DR.  C.  C.  PARRY. 

PROF.  S.  D.  TILLMAN.  DR.  J.  H.  RAUCH. 


ADVISORY  COMMITTEE 

Chosen  to  unite  with  Standing  Committee  in  the  Nomination 

of  Officers. 

SECTION  A.  SECTION  B. 

PROF.  ELIAS  LOOMIS,  OF  NEW  HAVEN.  PROF.  E.  A.  DALRYMPLE,  OF  BALTIMORE. 

PROF.  CLEVELAND  ABBE,  OF  CINCINNATI.  PROF.  0.  C.  MARSH,  OF  NEW  HAVRN-. 

PROF.  J.  C.  WATSON,  OF  ANN  ARBOR.  DR.  C.  A.  WHITE,  OF  IOWA  CITY. 

PROF.  G.  W.  HOUGH,  OF  ALBANY.  COL.  J.  W.  FOSTER,  OF  CHICAGO. 


SUB-COMMITTEES  OF  THE   STANDING   COMMITTEE. 

i.    Committee  on  Nominations: 

H.  L.  EUSTIS.  C.  C.  PARRY. 

2.    Committee  on  Papers: 

J.  S.  NEWBERRY.  E.  H.  NEWTON. 

3.    Committee  on  Hours  and  Business: 

J.  H.   RAUCII.  JOSEPH  LOVERING. 


NOTICES. 


The  meetings  of  the  Association  and  its  Sections  will  hereafter 
be  held  at  the  First  Baptist  Church  on  Wabash  Avenue,  south  of 
Hubbard  Court. 

Omnibuses  run  on  Wabash  Avenue  and  cars  on  State  Street. 
Passengers  wishing  to  attend  the  meetings  should  stop  at  Hub- 
bard  Court. 

.  The  members  of  the  Association,  with  those  who  are  entertain- 
ing them,  and  the  Members  of  the  Academy  of  Sciences,  are 
invited  to  an  excursion  on  the  Lake  on  Saturday  afternoon.  The 
Steamer  will  leave  the  dock  (which  will  be  named  in  to-morrow's 
Programme)  punctually  at  three  o'clock.  A  lunch  will  be  pro- 
vided on  board.  Member's  tickets  will  entitle  holders  and  their 
friends  to  admission  on  board. 

The  attention  of  those  recently  elected  members  is  called  to  the 
following  :  u  The  admission  fee  of  new  members  is  five  dollars, 
in  addition  to  the  annual  subscription,  which,  including  the  price 
of  the  Proceedings,  is  three  dollars  for  all  members.  These  dues 
should  be  paid  at  as  early  a  period  as  possible.  They  will  be 
received  by  the  Permanent  Secretary,  at  the  office  of  the  Local 
Committee.  According  to  Rule  21  of  the  Constitution,  no  person 
shall  be  considered  a  member  until  the  dues  for  the  meeting  are 
paid." 

The  Secretaries  of  the  Sections  and  other  officers  who  have 
matter  for  publication  in  the  "  Programme,"  are  requested  to 
hand  it  in  to  the  Local  Secretary,  daily,  at  as  early  an  hour  as 
possible. 

Letters  for  members  of  the  Association  will  hereafter  be  found 
at  the  office  of  the  Local  Committee,  at  the  Sherman  House. 

On  Monday  evening  next,  an  entertainment  will  be  given  to 
the  Association  by  the  the  Chairman  of  the  Local  Committee. 


SECTION     A . 
MATHEMATICS,  PHTSICS,  AND  CHEMISTRT. 

Chairman. 
PROF.  WM.  CHAUVENET,  OF  ST.  Louis. 

Secretary. 
PROF.  GEO.  F.  BARKER,  OF  NEW  HAVEN. 

Sectional  Committee. 

PROF.  T.  H.  SAFFORD,  OF  CHICAGO. 
PROF.  BENJ.  SILLIMAN,  OF  NEW  HAVEN. 
PROF.  E.  N.  HORSFORD,  OF  CAMBRIDGE. 


TITLES  OF  PAPERS 

For  Friday,  Atigust  7,  1868,  in  Section  A. 

\ .  The  Calculation  of  the  Crystalline  Form  of  the  Anhydrous 
Carbonates,  Nitrates,  Sulphates,  Perchlorates,  Perman- 
ganates, and  other  Salts  of  the  Composition  A  B3  C,  or 
A  B4  C.  By  GUSTAVUS  HINRICHS.  [30  minutes.] 

2.  Further  Notice  of  Experiments  on  Snow  and  Ice  at  a  Tem- 

perature below  32°  F. 

By  EDWARD  HUNGERFORD.     [30  m.] 

3.  On  Hausen's  Theory  of  the  Physical  Constitution  of  the  Moon. 

By  SIMON  NEWCOMP,.     [10  m.] 

4.  The  Resuscitation  of  the  Cincinnati  Observatory. 

By  CLEVELAND  ABBE.     [15  m.] 


25 

/  ! 

5-   On  the  Mathematical  Investigations  made  for  the  Construction 
of  the  Illinois  and  St.  Louis  Bridge. 

By  WILLIAM  CHAUVENET.     [20  m.] 

6.  The  Source  of  Free  Hydrochloric  Acid  in  the  Gastric  Juice. 

By  E.  N.  HOSFORD.     [15  m.] 

7.  Remarks  on  the  Galvanic  Battery. 

By  G.  W.  HOUGH.     [30  in.] 

8.  On    a  proposed  new  Mechanism  for  the  study  of  Galvanic 

Batteries.  By  G.  W.  HOUGH.     [30  m.] 

9.  Phosphoric  Acid  a  Constituent  of  Butter. 

By  E.  N.  HORSFORD.     [10  m.] 

10.  The  Hot  Term  of  July.         By  O.  N.  STODDARD.     [15  m.] 


SECTION     B. 
GEOLOGT  AND  NA TURAL  HISTOR T. 

Chairman. 

PROF.  J.  D.  WHITNEY,  OF  CAMBRIDGE,  MASS. 

\ 

Secretary. 
PROF.  E.  D.  COPE,  OF  PHILADELPHIA,  PA. 

Sectional  Committee. 

A.  II.  WORTHEN,  OF  SPRINGFIELD,  ILL. 
PKOK.  O.  C.  MARSH,  OF  NEW  HAVEN,  CONN. 
PUOF.  TIIEO.  GILL,  OF  WASHINGTON,  D.  C. 


TITLES   OF  PAPERS 

For  Friday,  August  7,  1868,  in  Section  B. 

\ 

I  .  On  Gold  in  the  Laurentian  Rocks  of  Canada. 

By  T.  S.  HUNT. 

2.  On  the  Gold  Region  of  Nova  Scotia.  By  T.  S.  HUNT. 

3.  On  the  Upper  Silurian  and  Devonian  Rocks  of  Ontario. 

By  T.  S.  HUNT. 

4.  Origin  of  the  Prairies.  ByJ.  W.  FOSTER. 


5.  On   the   Geological   Age    and    Equivalents  of  the  Marshall 

Group.  By  A.  WINCHELL. 

6.  Notice  of  Some  New  Vertebrate  Remains  from  the  Tertian 

of  New  Jersey.  By  O.  C.  MARSH. 

7.  On  the  Plasticity  of  Rocks,  and  origin  of  the  Structure  of  the 

so-called  Grave  Stone  Slates  of  California. 

By  W.  P.  BLAKE. 

8.  Source  of  Muscular  Power.  By  E.  N.  HORSFORD. 

9.  Relations  of  the  Metamorphoses  of  the  Phosphates  of  Waste 

and  Repair.  By  E.  N.  HORSFORD. 

10.  Fluorine  a  Constituent  of  the  Brain.    By  E.  N.  HORSFORD. 

11.  On    the    Physical    Geography    of  the     Continent    of    North 

America  during  the  different  Geological  Periods. 

By  J.  S.  NEWBERRY. 

12.  Fuel  Resources  of  Illinois.  By  A.  II.  WORTH  EN. 

13.  Geological  Section  of  Ohio.  By  E.  B.  ANDREWS. 


TITLES  OF  PAPERS  ALREADY  ENTERED. 


29.  Influence  of  the  Moon  upon  the  Weather.    By  ELIAS  LOOMIS. 

30.  On  Some  Points  in  the  Geology  of  Vermont. 

By  T.  S.  HUNT. 

31.  On  the  Upper  Silurian  and  Devonian  Rocks  of  Ontario. 

By  T.  S.  HUNT. 

32.  On  Gold  in  the  Laurentian  Rocks  of  Canada. 

By  T.  S.  HUNT. 

33.  On  the  Gold  Regions  of  Nova  Scotia. 

By  T.  S.  HUNT. 

34.  On  the  Chemico-Geological  Relations  of  the  Metals. 

By  T.  S.  HUNT. 

35.  The  Antiquity  of  Man  in  North  America. 

BY  J.  W.  FOSTER. 

36.  Origin  of  the  Prairies.  By  J.  W.  FOSTER. 

37.  Exhibition    of  the    Crania   of  Bootherium  and  Castoroides, 

with    Remarks    on    their    Geological    Position    and    their 
Living  Analogues.  By  J.  W.  FOSTER. 

38.  On  the  Occurrence  of  Fluor  Spar  in  Southern  Illinois. 

Bv  T.  W.  FOSTER. 

•/     *J 

39.  On  the  Refrigeration  of  Continents.         By  J.  W.  FOSTER. 

40.  On  the  Occurrence  of  Tin  in  Missouri.    By  J.  W.  FOSTER. 

41.  Migrations  of  the  Indian  Fa'mify.  By  L.  H.  MORGAN. 

42.  The  Application  of  Carbonic  Acid  Gas,  in  the  Extinguish- 

ment of  Fire.  Bv  E.  L.  BUTTRICK. 

.{3.   Hough's  Barometrograph   as  applied   to  the  Investigation  of 
the  Storm  Curve.  By  J.  II.  COFFIN. 

44.  Brief  Remarks  on  the  Botany,  Meteorology,  and  Geology  of 

Mount  Mansfield,  Vermont.  Bv  JAMES  HYATT. 

45.  Habits  and    Peculiarities  of  Plants   in    South   Eastern   New 

York  and  Vicinity.  By  JAMES  HYATT. 

46.  Movements  in  Stratified  Rocks,  since  the  Glacial  Epoch. 

By  JAMES  HYATT. 
-17-  On  die  Stratigraphical  Relations  of  the  Fossil  Horse  in  the 

United  States.  By  CHARLES  WHITTLESEY. 

48.  Abstract  of  the  Geological  Evidences  of  Man's  Antiquity  in 

the  United  .States.  Bv  CHARLES  WHITTLKSKY. 


28 

49-  On  the  Formation  of  Shells  and  Belemnites,  and  Phosphates 
of  Iron  at  Mulicn  Hill,  Gloucester  County,  N.  J. 

By  A.  B.  ENGSTROM. 

50.  On  the  Laws  of  Ocean  Currents.  By  J.  S.  GRIMES. 

51.  The  Recent  Contributions  of  Science  to  the  Arts  of  Dyeing 

and  Printing  Woolen  Tissues.  By  JOHN  L.  HAYES. 

52.  Meteorolites  from  Mexico  and  Poland. 

By  Louis  FEUCHTWANGER. 

53.  Law  of  the  Earth.  By  P.  E.  TRASTOUR. 

54.  New  Geological  Study.  By  P.  E.  TRASTOUR. 

55.  On  the  Combining  Power  of  the  Chemical  Elements. 

By  S.  D.  TILLMAN. 

56.  The  Habitable  Features  of  the  North  American  Continental 

Plateau  near  the  Line  of  the  35  Parallel  of  North  Latitude  : 
containing  a  General  Summary  of  Conclusions  derived 
from  a  Review  of  its  Aboriginal  Population  and  Natural 
Features.  By  C.  C.  PARRY. 

57.  Notice  of  some  New  Vertebrate  Remains  from  the  Tertiary 

of  New  Jersey.  By  O.  C.  MARSH. 

58.  Description  of  a  New  Species  of  Protichnites  from  the  Pots- 

dam Sandstone  of  New  York.  By  O.  C.  MARSH. 

59.  On  the  Preservation  of  Color  in  Fossils  from  Palaeozoic  For- 

mations. By  O.  C.  MARSH. 

60.  Further  Notice  of  Experiments  on   Snow  and  Ice  at  a  Tem- 

perature below  32°  F.  By  EDWARD  HUNGERFORD. 

61.  Experiment  Illustrating  the  Flow  of  Glaciers. 

By  EDWARD  HUNGERFORD. 

62.  On  Hausen's  Theory  of  the  Physical  Constitution  of  the  Moon. 

By  SIMON  NEWCOMB. 

63.  The    Importance    of    the    .Submarine    Aleutian    Chain    as    a 

Geostatic  and  Geographical  Feature.     By  T.  C.  HILGARD. 

64.  The  Hermaphrodism  of  Fungi   ascertained. 

\\\  T.  C.  HILGARD. 

6v  The   Confervaceae  ascertained  to  be  Thelline  ;    their    Phase, 
Development,  Circuit  and  Generation. 

By  T.  C.  HILGARD. 

66.  Spermatic    Phenomena.      The    Paludal    Endogens    a    Class 
Intermediate  between  Endogens  and  Exogens. 

By  T.  C.  HILGARD. 
f>j.   Resuscitation  of  Cincinnati  Observatory. 

CLEVELAND  ABBE. 


68.  Atomic  Motion.  By  H.  F.  WALLING. 

69.  On  the  Mathematical  Investigations  made  for  the  Construction 

of  the  Illinois  and  St.  Louis  Bridge. 

By  WILLIAM  CHAUVENET. 

70.  On  a  Method  of  Measuring  very  Small  Rectilinear  Motions. 

By  WILLIAM  CHAUVENET. 

71.  The  Source  of  Free  Hydrochloric  Acid  in  the  Gastric  Juice. 

By  E.  N.  HORSFORD. 

72.  Relations  of  the  Metamorphoses  of  the  Phosphates  to  Waste 

and  Repair.  By  E.  N.  HORSFORD. 

73.  Economy  in  the  Conversion  of  Beef  into  Food. 

By  E.  N.  HORSFORD. 

74.  Remarks  on  the  Galvanic  Battery. 

By  G.  W.  HOUGH. 

75.  On   a  proposed  new  Mechanism  for  the  study  of   Galvanic 

Batteries.  By  G.  W.  HOUGH. 

76.  Remarks    on    the     total     Disturbance   of  the    Barometrical 

Column.  By  G.  W.  HOUGH. 

77-  Announcement   of    the   Discovery   of    Cretaceous    Rocks    in 
Guthrie  County,  Iowa.  By  C.  A.  WHITE. 

78.  Remarks  upon  the    redquartzite  Boulders  and  their  Original 

Ledges  in  situ  in  Northwestern  Iowa,  Eastern  Dakota,  and 
Southwestern  Minnesota.  By  C.  A.  WHITE. 

79.  The  Principles  of  Statistics  as  applied  to  the  Census. 

By  F.  B.  HOUGH. 

80.  On  the   Geological   Age   and  Equivalents    of   the   Marshall 

Group.  By  A.  WINCHELL. 

8 1 .  Exhibition  of  a  New  Geological  Chart.     By  A.  WINCHELL. 

82.  Exhibition  of  a  New  Label  Holder  for  Zoological  Specimens. 

By  A.  WINCHELL. 

83.  On  some  Points  in  Geological  Nomenclature. 

By  A.  WINCHELL. 

84.  The  Profiles  of  Blast  Furnaces.         By  THOMAS  EGLESTON. 

85.  Phosphoric  Acid  a  Constituent  of  Butter. 

By  E.  N.  HORSFORD. 

86.  Source  of  Muscular  Power.  By  E.  N.  HORSFORD. 

87.  Fluorine  a  Constituent  of  the  Brain.      By  E.  N.  HORSFORD. 

88.  Fossil  Fishes,  Insects,  Crustacea,  etc.,  of  the  Coal  Measures 

of  Grundy  County,  Illinois.  By  A.  H.  WORTHEN. 

89.  Fuel  Resources  of  Illinois.  By  A.  H.  WORTHEN. 


ARRIVALS. 


86.  CAUL    VON    COELLEN,   Professor  of  Mathematics,   Iowa 
College,  Grinnell,  Iowa — P.  L.  Underwood,  526  Wabash  Avenue. 

87.  A.  S.  PACKARD  Jr.,  Professor  of  Natural  History,  Peabody 
Academy,  Salem,  Mass — Sherman  House. 

88.  F.  A.  P.  BARNARD,  President  of  Columbia  College,  New 
York  City. — Sherman  House. 

89.  O.  H.  FITCH,  Lawyer,  Ashtabula,  Ohio — Sherman  House. 

90.  EDWARD  H.  FITCH,  Lawyer,  Ashtabula,  Ohio — Sherman 
House. 

91.  W.  H.  BULLOCH,  Optician,  Chicago — 147  Madison  Street. 

92.  H.  F.  WALLING,  Professor  of  Civil   Engineering,  Lafay- 
ette College,  Brooklyn  N.  Y. — Farwell  House. 

93.  J.    N.    STOCKWELL,   Mathematician,    Brecksville,    Ohio — 
Farwell  House. 

94.  E.  S.  CARR,  Professor  of  Chemistry,  Madison  Wis. 

95.  H.  M.  BANNISTER,  Ph.  B,  Assist.  Illinois  Geological  Sur- 
vey, Evanston,  Cook  Co.,  111. 

96.  Rev.  EDWARD  C.  BOLLES,  Secretary  of  the  Portland  Society 
of  Natural  History,  Portland,  Me. —  168  Michigan  Avenue. 

97.  A.  WINCHELL,  Professor  of  Geology,  Zoology,  and  Botany, 
Ann  Arbor,  Mich. 

98.  T.    STERRY  HUNT,  of  the  Geological  Survey  of  Canada, 
Montreal  —  342  North  Lasalle  Street. 

99.  WM.   P.   BLAKE,   Professor   of  Mineralogy  and    Geology. 
California  —  Sherman  House. 

100.  JAMES  HALL,  New  York  State  Geologist,  Albany,  N.Y. 

101.  T.  A.  MEYSENBURG,  Civil  Engineer,  St.  Louis,  Mo. 

102.  JOEL  HENDRICK,  Professor  of  Latin  and  Greek  Languages, 
Horellsville,  N.Y. 

103.  JAMES  C.  WATSON,  Astronomer,  Ann  Arbor.  Mich. 

104.  CHAS.  H.  BRIGHAM,  Professor  of  Ecclesiastical   History, 
Meadville  Theological  School,  Ann  Arbor. 

105.  EDWARD    DOUBLEDAY    HARRIS,    Architect,    Cambridge, 
Mass. 

106.  CHAS.  V.  RILEY,  State  Entomologist,  St.  Louis,  Mo. 


107.  JOHN  H.  KLIPPART,  Ohio  State  Board   of  Agriculture, 
Columbus,  Ohio  —  67  Maple  Street. 

108.  O.  N.  STODDARD,  Professor  of  Natural  Sciences,  Miami 
University,  Oxford,  Ohio  —  Charles  Paine,  Esq.,  342  N.  Lasalle 
Street. 

109.  HERMAN  HERZER,    Minister  of   the  Gospel,  Columbus, 
Ohio. 

1 10.  JOSEPH  MILLER,  Civil  Engineer,  New  York  —  Sherman 
House. 

in.  OLIVER  EVERETT,  Physician,  Dixon,  111. 

112.  CHAS.  BILL,  Publisher,  Chicago,  111. —  Office,  132  S.  Clark 
Street. 

113.  L.  B.  CASE,  Geologist,  Richmond,  Ind. 

114.  EDWARD  H.  BEEBE,  Miner,  Galena  —  368  Ohio  Street. 

115.  ROSWELL  PARK,  D.D.,  Teacher,  Chicago. 

116.  C.  G.  HAMMOND,  Chicago  —  272  Erie  Street. 

117.  C.  E.  HUBBARD,  Lawyer,  Boston,  Mass. 

118.  RODNEY  WELCH,  Professor  of  Chemistry,  Chicago —  128 
State  Street. 

119.  OLIVER   MARCY,  Professor  of  Natural    Sciences,  North- 
Western  University,  Evanston,  111. 

1 20.  S.  H.  PEABODY,  Professor  of  Natui-al  Science,  Chicago 
High  School,  Chicago. 

121.  CHAS.  J.  SHEFFIELD,  Chemist,  Cleveland,  Ohio. 

122.  Louis  C.WURTZEL,  Clergyman,  Acton  Vale,  Prov.  Quebec 
—  1 60  Fulton  Street. 

123.  C.  H.  HITCHCOCK,  Geologist,    New  York  —  Richmond 
House. 

1 24.  D.  P.  MAYHEW,  Professor  of  Natural  Science,  Detroit  — 
Richmond  House. 

125.  ALBERT  H.  TUTTLE,  Student  of  Natural  History,  Cleve- 
land, O. 

126.  P.  H.  VANDER  WEYDE,  Professor  of  Natural  Sciences, 
New  York  City  —  Sherman  House. 

127.  J.   BAKER    EDWARDS,    Consulting  Chemist,  Montreal  — 
Farwell  House. 

128.  E.  B.  ANDREWS,  Professor  of  Geology-,  Marietta,  O. — 
Sherman  House. 

1 29.  P.  R.  HOY,  Physician  and  Naturalist,  Racine,  Wis. 

130.  JOHN  M.  WOODWOUTH,  M.D.,  Surgeon.  Chicago —  Rooms 
2  and  3,  Lombard  Block. 


32 

131.  L.  S.  PENNINGTON,  Professor  of  Horticulture  and  Agri- 
culture, Sterling,  111.  — Joseph  Bullock. 

132.  E.  W.  BLATCHFORD,  Chicago  —  375  N.  LaSalle  Street. 

133.  E.   S.  CHESBKOUGH,  Civil   Engineer,   Chicago  —  317  N. 
LaSalle  Street. 

134.  WALTER  HAY,  Physician,  Chicago — 188   S.   Sangamon 
Street. 

135.  ELIAS    LOOMIS,   Astronomer,  New  Haven — 189  Briggs 
House. 

136.  A.  HAMMER,  Professor  of  Surgery,  St.  Louis,  Mo.  —  175 
N.  Clark  Street. 

137.  JOHN  WOODS,  Philadelphia. 

138.  JOHN  DAVIS,  Professor,  Philadelphia. 

139.  JAMES  S.JEWELL,  Physician,  Evanston,  111. 

140.  THOS.  D.  ROBERTSON,  Rockford. 

141.  J.  S.  NEWBERRY,  Professor  of  Geology,  New  York  —  Col. 
C.  G.  Hammond,  272  Erie  Street. 

142.  WM.    WATSON,    Professor    of    Engineering,    Cambridge, 
Mass.  —  Sherman  House. 

143.  BENJ.  ALVORD,  Brig.  General,  U.S.A.,  Omaha,  Neb.  — 
Dr.  J.  V.  Z.  Blaney,  136  N.  State  Street. 

144.  DAVENPORT  FISHER,  Chemist,  Milwaukee,  Wis.  —  Wm. 
H.  Clarke,  Esq.,  57  W.  Hinsdale  Street, 

145.  WM.  H.  CLARKE,  Civil  Engineer,  Chicago  —  57  W.  Hins- 
dale Street. 

146.  W.    O.    ATWATER,    Assistant,    Scientific    School,    Yale. 
New  Haven,  Conn. —  Farvvell  House. 

147.  HARRISON   ALLEN,   Surgeon,    Professor  of  Comparative 
Anatomy    and    Zoology,    University    of    Penn.,    Philadelphia  — 
Orrrington  Lunt,  Esq. 

148.  HORATIO  C.  WOOD,  Jr.,  Physician  and  Professor  of  Botany, 
University  of  Penn.,  Philadelphia. 

149.  BENJ.    D.  WALSH,    Entomologist,    Rock   Island,    111.  — 

150.  D.    H.    COCHRAN,    President    of    Brooklyn    Polytechnic 
Inst.,  Brooklyn  —  Sherman  House. 

151.  WM.  EIMBECK,  Civil  Engineer,  St.  Louis,  Mo.  —  Sherman 
House,  room  190. 

152.  S.  EDWARD  WARREN,    Prof.    Rens.,    Polytechnic    last., 
Troy,  N.  Y.  —  Sherman  House. 

IZT..  DASCOM   GREENE.  Professor  of  Mathematics.  c\c..  Tn>\. 

^J  \f  •> 

X.  Y. 


PROGRAMME 


SATURDAY,    AUGUST   8M,    1868. 


MORNING. 

The  General   Session  will  be   held   in  Library  Hall. 
The  following  Papers  will  be  read: 

1.  Steam  Boilers  and  the  Various  Causes  assigned 

for  their  Explosions,  illustrated  by  Facts, 
Drawings  and  Experiments. 

By  JOSEPH  A.  MILLER. 

2.  On  the  Application  of  Electricity  to  the  Main- 

tenance of  the  Vibration  of  the  Tuning-fork, 
and  of  the  Tuning-fork  to  the  Excitement  of 
Vibrations  in  Cords  and  Threads. 

By  JOSEPH  LOVERING. 

There  will  be  no  meetings  of  the  Sections  to-day. 

AFTERNOON. 

Excursion  upon  the  Lake,  from   Goodrich's  Dock,  at 
half-past  two  o'clock. 


STANDING  COMMITTEE. 

DR.  B.  A.  GOULD.  PROF.  J.  S.  NEWBEKRY. 

COL.  CHARLES  WHITTLESKY.  PROK.  WOLCOTT  GIBBS. 

PROF.  JOSEPH  LOYERING.  PROK.  C.  S.  LYMAN. 

PROF.  SIMON  NEWCOMB.  DR.   A.  L.    ELWYN. 

PROF.  WILLIAM  CHAUYENBT.  PROK.  J.  D.   WHITNEY. 

PROF.  H.  L.  EUSTIS.  PROF.  H.  E.  NEWTON. 

PROF.  F.  A.  P.  BARNARD.  DR.  C.  C.  PARRY. 

PROF.  P.  D.   TILLMAN  DH.  J.  H.  RAITCH. 


ADDITIONAL  MEMBERS 

Chosen  to   unite    with   Standing  Committee  as  a    Council  for 
the  Nomination  of  Officers. 

SECTION  A.  SECTION  B. 

PROF.  ELIAS  LOOMIS,  OK  NK\V  HAVK.V.  PROF.   E.   A.  DALRYMPLE,  OK  BAI.TIMORK 

PROF.  CLEVELAND  ABBE,  OF  CINCINNATI.  PROF.  0.  C.  MARSH,  OF  NEW  HAVKX 

PROF.  J.  C.  WATSON,  OK  ANN  ARBOR.  DR.  C.   A.  WHITE,  OF  IOWA  CITY. 

PKOF.  G.  W.   HOUGH,  OK  ALBANY.  COL.  J.   \V.  FOSTER,  OF  CHICAGO. 


SUB-COMMITTEES   OF  THE   STANDING   COMMITTEE. 
i.    Committee  on  Nominations: 

11.   L.  EUSTIS.  C.  C.  PARRY. 

2.    Committee  on  Papers: 

J.  S.  NEWBERRY.  U.   K.   NEWTON. 

3.    Committee  on  Hours  and  Business : 

J.   H.    RAUCH.  JOSEPH  LOVERINC. 


ic  at     ^incoln    park, 


ON  SATURDAY  AFTERNOON. 


1.  March — Helene 

2.  Stabat  Mater 

3.  Concert  Polka 

4.  Overture — The  Humor  of  Berlin 

5.  Waltz — Memories  of  Home 

6.  Coronation  March  from  "  The  Prophet" 

7.  Festival  Overture 

8.  Gallop— Halloo,  Halloo 

9.  Fantasie  from  "  Faust" — By  request     . 
10.  Finale — National  Airs 


Winter 

Rossini 

Labitzky 

Conracli 

Vaas 

Meyerbeer 

Leutner 

Steinmuller 

Gounond 


Church,  Goodman  &  Donnelley,  Printers. 


NOTICES. 


The  steamer  Orion  will  leave  Gooclrich's  Dock,  just  below 
Rush  Street  Bridge,  on  the  south  side  of  the  river,  at  half-past 
two  o'clock,  for  an  excursion  on  the  Lake.  A  lunch  will  be  pro- 
vided on  board,  and  music  from  a  quartette  club  may  be  expected. 
To  this  excursion  the  members  of  the  Association  and  their 
friends,  and  the  members  of  the  Academy  of  Sciences,  with  ladies, 
are  invited. 

There  will  be  Instrumental  Music  at  Lincoln  Park,  after  the 
return  of  the  Excursionists,  until  half-past  seven  o'clock. 
Lincoln  Park  may  be  reached  bv  the  horse  cars  on  North  Clark 
Street. 

On  Monday  evening  next,  an  entertainment  will  be  given  to 
the  Association  bv  the  Hon.  J.  YOUNG  SCAMMON,  Chairman  of 
the  Local  Committee,  at  his  residence.  209  Michigan  Avenue,  to 
which  are  invited,  in  addition  to  the  Members  of  the  Association. 
and  their  ladies  and  friends,  the  Members  of  the  Academy  of 
Sciences,  the  Historical  Society,  and  the  Astronomical  Society, 
and  the  Faculties  of  the  Universities  and  Medical  Schools  in 
Chicago  and  vicinitv.  Those  who  are  entertaining  Members  of 
the  Association,  with  their  ladies,  are  also  invited. 

The  Local  Committee  desire  to  state  that  at  least  twenty-four 
hours  are  required  to  procure  passes  on  the  railroads  for  those 
who  wish  to  make  excursions,  and  applications  for  them  should 
be  made  as  early  as  possible.  The  announcement  in  Thursday's 
Programme  was  made  under  the  impression  that  the  excursion 
passes  would  be  required  at  the  close  of  the  session.  The  officers 
of  the  Railway  Companies  prefer  to  have  applications  for  passes 
presented  to  them  in  the  form  of  lists,  at  stated  times,  rather  than 
singly,  at  all  times.  The  Local  Committee  trust  that  this  will  be 
a  sufficient  apology  to  those  who  may  have  experienced  delay  in 
the  reception  of  their  passes. 


TITLES  OF  PAPERS  ALREADY  ENTERED. 


90.  On    the    Physical    Geography    of    the    Continent   of    North 

America  during  the  different  Geological  Periods. 

By  J.  S.  NEWBERRY. 

91.  On  the  Transportation  of  the  Materials  forming  the  Carboni- 

ferous Conglomerates.  By  J.  S.  NEWBERRY. 

92.  On  the  Surface  Geology  of  the  Basin  of  the  Great  Lakes  and 

the  Upper  Mississippi  Valley.  By  J.  S.  NEWBERRY. 

93.  On  the  Plasticity  of  Rocks,  and  Origin  of  the  Structure  of  the 

so-called  Grave  Stone  Slates  of  California. 

By  W.  P.  BLAKE. 

94.  On  the  Gradual  Dessication  of  the  Western  Portions  of  North 

America.  By  W.  P.  BLAKE. 

95.  Vestiges  of  Pre-historic  Races  in  California. 

By  W.  P.  BLAKE. 

96.  Geological  Section  of  Ohio.  By  E.  B.  ANDREWS. 

97.  The  Hot  Term  of  July.  By  O.  N.  STODDARD. 

98.  The  Nature  of  Electric  Discharge.       By  O.  N.  STODDARD. 

99.  The  Higher  Law  of  Correlation.          By  O.  N.  STODDARD. 

100.  On  Certain  Physical  Features  of  the  Mississippi  River. 

By  G.  K.  WARREN. 

101.  The  Vertebral  Type  of  the  Cranium  a  Quinary  one. 

By  T.  C.  HILGARD. 

102.  Extremities  of  the  Skeleton  Typically  v 

By  T.  C.  HiLGARi). 

103.  The  Quebec  Group  in  Northern  New  Hampshire. 

By  C.  H.  HITCHCOCK. 

104.  The  Supposed  Triassic  Foot-marks  in  Kansas. 

By  C.  H.  HITCHCOCK. 

105.  The    Distortions    of  Pebbles    in   Conglomerate    at   Rangly. 

Maine.  BY  G.  L.  VASE. 

106.  On    Elasmognathus    and    its    Relations    to     the     Tapirida- 

generally.  Bv  THEODORE  GM.I.. 

107.  On  the  Classification  and  Relations  of  Seals. 

Bv  THEODORE  Gn.i.. 


37 

108.  On  the  Secular  Recurrence  of  Identical  Petrogenetic  Condi- 

tions. By  A.  WINCHELL. 

109.  Superficial  Geology  of  the  Lake  Shore  near  Chicago. 

By  J.  S.  JEWELL. 

1 10.  The  Darwinian  Theory  of  Development. 

By  CHARLES  MORAX. 

in.  The  Periodic  Law  in  the  Failure  of  Harvests  and  Inunda- 
tions, with  Suggestions  as  to  their  Insurance. 

By  GEORGE  A.  LEAKIN. 

1 1 2.  On  the  Old  Lake  Beds  of  the  Prairie  Region. 

By  S.  J.  WALLACE. 

113.  On  the  Progress  and  Present  Condition  of  the  Geological 

Survey  of  California.  By  J.  D.  WHITNEY. 

114.  The  Fossil  Human  Skull  of  Calaveras  County,  California. 

By  J.  D.  WHITNEY. 

115.  Some  Points  in  the  Surface  Geology  of  the  Western  Side  of 

the  American  Continent.  By  J.  D.  WHITNEY. 

1 1 6.  The  Yosemite  Valley.  By  J.  D.  WHITNEY. 

117.  On    the    Structure    and    Aqueous    Origin    of    Gold-bearing 

Mineral  Veins.  By  BENJAMIN  SILLIMAN. 

118.  On  Methods  of  Amalgamation  in   the  Treatment  of  Gold 

Ores.  By  BENJAMIN  SILLIMAN. 

119.  On  the  Occurrence  of  the  Mastodon  in  the  Deep-Lying  Gold 

Placres  of  California.  By  BENJAMIN  SILLIMAN. 

1 20.  On  the  Relation   between  the  Atomic  Volume  of  Different 

Metals,    and    their    Paramagnetic  and  Diamagnetic  Pro- 
perties. By  P.  H.  VANDER  WEYDE. 

121.  Geodes.  By  W.  W.  WILLIAMS. 

1 22.  Modern  Discoveries  in  Palestine.      By  W.  W.  WILLIAMS. 

1 23.  On  the  Molecular  Arrangement  of  the  Inorganic  Acids. 

By  GEORGE  F.  BARKER. 

1 24.  Theory  of  the  Prediction  of  Star  Places. 

By  T.  H.  SAFFORD. 

125.  Sketch  of  the  Topography,  Geology  and  Antiquities  of  the 

Caucasus.  By  F.  VON  KOSCHKULL. 

126.  On   Two  New  Fossil   Trees,   the  oldest  known,   found   by 

Rev.  H.  HEKZER,  in  the  Devonian  Rocks  of  Ohio. 

By  J.  S.  NEWBERRY. 

1 27.  Remarks   on   the    Secular   Variations  of  the    Eccentricities 

and  Perihelia  of  the  Eight  Principal  Planets. 

By  J.  S.  STOCKWELL. 


38 

1 28.  Description  and  Application  of  the  Heliostat,  and  Method 

of  Running  True  Meridian  Lines  in  Surveying. 

By  MICHAEL  W.  McDERMOTT. 

129.  Report  on  Archaeology  and  Ethnology.        By  W.  DE  HASS. 

130.  Archaeology  and  Ethnology  of  the  Mississippi  Valley. 

By  W.  DE  HASS. 

131.  Tides  in  Lakes.  By  H.  A.  NEWTOX. 

132.  On  the  Evaporative  Power  of  the  Sun  near  the  Base  of  the 

Sierra  Nevada,  in  Calaveras  County,  California. 

By  BENJAMIN  SILLIMA.V. 


ARRIVALS. 


154.  SIDNEY  S.  LYON,  Geologist,  Jeffersonville,  Ind. —  Sher- 
man House. 

155.  EDWARD    HITCHCOCK.     Professor    of   Physics,    Amherst. 
Mass.  —  Richmond  House. 

156.  EDWIN  POWELL,  Physician,  Chicago  —  45  S.  Clark  Street. 

157.  H.  C.  FREEMAN,  Mining   Engineer  and  Geologist.  South 
Pass,  111. 

158.  M.  HECKARD,  Mining  Engineer,  Pomeroy,  Ohio. 

159.  HENRY  H.  BABCOCK,  Teacher,  Chicago. 

160.  LEWIS    H.     MORGAN.      Lawyer,     Rochester — Sherman 
House. 

161.  ROBERT  BROWN,  Jr.,  Naturalist,  Cincinnati,  O.  —  Lyman 
Baird,  Esq.,  383  N.  LaSalle  Street. 

162.  GEORGE    H.   PERKINS,    Zoologist,   New  Haven,   Con.  — 
Kenwood. 

163.  N.  S.  DAVIS,  Professor  in  the  Chicago  Medical  College  — 
797  Wabash  Avenue.    y 

164.  B.   WATERHOUSE    HAWKINS.   Teacher'  of   Palaeontology , 
New  York  City. 

165.  H.  A.  JOHNSON.  Professor  and  Physician,  Chicago  —  611 
Wabash  Avenue. 

166.  S.  N.  MANNING.  Clergyman,  Kankakee.  111. 

167.  JOHN  ROCKWELL,  Superintendent  of  Coal  Mine,  LaSalle, 
111.  — Wm.  B.  Ogden,  Esq.,  cor.  Rush  and  Ontario  Streets. 

1 68.  JOHN  MURRISH,  Merchant,  Mazomanee. 

169.  N.  M.  DODSON,  Physician,  Berlin,  Wis. 

170.  WM.  W.  WILLIAMS,  Clergyman  and  Editor,  Winchester, 
Central  Illinois  — 688  Sedgwick  Street. 

171.  SAMUEL  STONE,  Chicago  —  612  N.  Clark  Street. 

172.  S.  A.  BRIGGS,  Microscopist,  Chicago. 

173.  D.  READ.  President  of  College.  Upper  Alton,  111. 

174.  J.    Y.    SCAMMON,     President    of    Chicago    Astronomical 
Society,  etc..  etc.  —  209  Michigan  Avenue. 


4° 

1 75-  CHARLES  MORAN,  Banker,  New  York  —  Sherman  House. 

176.  E.  L.  YOUMANS,  Professor,  New  York. 

177.  ROBERT  T.  LINCOLN,  Lawyer.  Chicago. 

178.  U.  H.  CROSBY,  Chicago. 

179.  JOHN  A.  WARDER,  Farmer,  Hamilton  Co..  Ohio  —  Sher- 
man House. 

180.  CHARLES  GRANT.  Assistant  Professor  of  Latin,  Aberdeen. 
Scotland. 

181.  THOMAS  EGLESTON,  Professor  of  Mineralogy  and  Metal- 
lurgy, New  York  —  Sherman  House. 

182.  HENRY  MILES,  A.M.,  Secretary  (Eng. )  Department  Pub. 
Instruction,  Prov.  Quebec,  Quebec  City. 

183.  JOSEPH  TINGLEY.   Professor  of  Natural   Sciences.   Green- 
castle,  Ind. 

184.  WM.  H.  MYERS,  Physician,  Fort  Wayne,  Ind. 

185.  CLINTON  ROOSEVELT,  Lawyer,  New  York  City. 

186.  WM.  FERREL,  Naut.  Almanac  and  U.  S.  Coast  Survey, 
Cambridge,  Mass. 

187.  GEO.    C.  WALKER,    President   of  Chicago   Academy    of 
Sciences,  Chicago  —  261  Michigan  Avenue. 

188.  T.  H.  SAFFORD,  Professor  of  Astronomy  and  Director  of 
Dearborn  Observatory. 

189.  FRANK  H.  BRADLEY,  Assist.  Geologist  of  Illinois  —  New 
Haven,  Conn. 

190.  MICHEL  McDERMOTT,  Civil  Engineer  and  City  Surveyor. 

191.  P.  J.  FARNSWORTH,  Physician.   Clinton,    Iowa  —  Briggs 
House. 

192.  A.  S.  WELCH,  President  of  Iowa  Agricultural  College  — 
Briggs  House. 

193.  CHAS.  KNICKERBOCKER,  Engraver  of  Scientific  Subjects. 
Chicago —  1141  Michigan  Avenue. 

194.  JOH^    H.    RAUCH,    Physician,    Chicago  —  140    Madison 
Street. 

195.  J.  HIBBARD,  Clergyman,  Chicago —  70  Third  Avenue. 

196.  W.  A.  P.  DILLINGHAM,  Clergyman,  Augusta,  Maine  — 
Hon.  J.  Y.  Scammon,  209  Michigan  Avenue. 

197.  THOS.  BASSNETT,  Sec.  Chicago  and  Montreal  Telegraph 
Co.,  Ottawa,  111.  —  Tremont  House. 

•  198.  FRED.  J.  HUSE,  Asst.    Local   Secretary,  Evanstoh,' Cook 
Co..  111.  —  Sherman  House. 


Programme  for  Saturday  Evening. 


SECTION     A . 
MATHEMATICS,  PHYSICS,  AND  CHEMISTRY. 

Chairman. 
PROF.  WM.  CHAUVENET,  OF  ST.  Louis. 

Secretary. 

PROF.  GEO.  F.  BARKER,  OF  NEW  HAVEN. 

•    ' 

Sectional  Committee. 

PROF.  T.  H.  SAFFORD,  OF  CHICAGO. 
PROF.  BENJ.  SILLIMAN,  OF  NEW  HAVEN. 
PROF.  E.  N.  HORSFORD,  OF  CAMBRIDGE. 


TITLES  OF  PAPERS 

For  Saturday,  August  8,  1868,  in  Section  A. 

EVENING  SESSION. 

1 .  Phosphoric  Acid  a  Constituent  of  Butter. 

By  E.  N.  HORSFORD.     [10  minutes.] 

2.  The  Hot  Term  of  July,  1868. 

By  O.  N.  STODDARD.     [15  in.] 

3.  The  Principles  of  Statistics  as  applied  to  the  Census. 

By  F.  B.  HOUGH.     [10  m.] 

4.  Remarks  on  the  Galvanic  Battery. 

By  G.  W.  HOUGH.     [10  m.] 

5.  On   a  proposed  new   Mechanism  for  the  study    of  Galvanic 

Batteries.  By  G.  W.  HOUGH.     [10  m.] 


SECTI  ON     B. 

GEOLOG  T  AND  NA  TURAL  HIS  TOR  T. 

Chairman. 
PROF.  J.  D.  WHITNEY,  OF  CAMBRIDGE,  MASS. 

Secretary. 
PROF.  E.  D.  COPE.  OF  PHILADELPHIA,  PA. 

Sectional  Committee. 

A.  H.  WORTHEN,  OF  SPRINGFIELD,  ILL. 
PROF.  O.  C.  MARSH,  OF  NEW  HAVEN,  CONN. 
PROF.  THEO.  GILL,  OF  WASHINGTON,  D.  C. 


TITLES   OF  PAPERS 

For  Satnrdav.  A//<>'//s/  S.  iS68,  in  Section  />'. 

i 

EVENING  SESSION. 

1.  Notice  of  some   New  Vertebrate   Remains  from  the  Tertiary 

of  New  Jersey.  By  O.  C.  MARSH. 

2.  On  the  Plasticity  of  Rocks,  and  Origin  of  the  Structure  of  the 

so-called  Grave  Stone  Slates  of  California. 

By  W.  P.  BLAKE. 

3.  Source  of  Muscular  Power.  By  E.  N.  HORSFORD. 

4.  Relations  of  the  Metamorphoses  of  the  Phosphates  to  Waste 

and  Repair.  By  E.  X.  HORSFORD. 

5.  Fluorine  a  Constituent  of  the  Brain.     By  E.  N.  HORSFORD. 

6.  On    the    Physical    Geography    of    the    Continent    of    North 

America  during  the  different  Geological  Periods. 

ByJ.  S.  \HwitKKKY. 

7.  Fuel  Resources  of  Illinois.  By  A.  II.  WORTHEN. 

8.  Geological  Section  of  Ohio.  1>\   1C.  P>.  ANDREWS. 
y.   On  the  Origin  of  Prairies.  By  J.  \V.  FOSTER. 


ARRIVAL  S.. 


199.  E.  A.   HILL,  Electrician,  Chicago. 

200.  DR.  VON  KOSCHKULL,  Tiflis,  Russia  —  Sherman  House. 

201.  F.  STALLKNECKT,  New  York  —  Sherman  House. 

i   202.  R.  PUMPEI.LY,   Engineer  of    Mines,  New  York  —  Sher- 
man House. 

203.  I.  A.   LAPHAM,  Civil  Engineer,  Milwaukee  —  Col.  Stone, 
•612  N.  Clark  Street. 

204.  JAMES  BUSIIIE.  Professor,  Worcester,  Mass. 

20 v  L.  G.  OT.MSTKAD,  Archaeologist.  Morran  Station,  N.  Y. 

206.  M.   L.   HORSFORD.  Cambridge. 

207.  DR.  MANNHEIMER,  Physician,  Chicago. 

208.  E.  L.  LATHROP,  Physician,  Chicago. 

209.  Z.  GROVER,  Teacher,  Chicago. 

210.  BENJAMIN  DURHAM.    Physician  — 73  Twenty-fourth  St., 
Chicago.  , 

211.  N.  F.  PECK.  M.D..  Davenport. 

212.  A.   S.   KEISSELL,  late  Superintendent  Minneapolis  Public 
Schools,  Davenport. 

213.  JEROME  AM, EN.   Superintendent  of   Schools,  Monticello, 
la.  — 345  Calumet  Avenue. 

214.  Mrs.  S.  A.  HUBBARD,  Kalamazoo,  Mich. 

215.  S.  C.  GROVE.  Portland,  Me. 


TITLES  OF  PAPERS  ALREADY  ENTERED, 


133.  Proofs  that  the  Changes  of  Climate    and  Dislocations  and 

Upheavals  of  the  Earth's  Strata  are  due  to  Astronomical 
and  not  to  Glacial  Action.         By  CLINTON  ROOSEVELT. 

134.  The  True  Mode  of  Building  Steam  Vessels  so  as  to  secure 

the  greatest  speed  possible.        By  CLINTON  ROOSEVELT. 

135.  The  Scientific  Mode  of  Anchoring  Vessels  in   a  gale  on  a 

lee  shore,  or  to  hold  to  a  "•  drag"  at  sea. 

By  CLINTON  ROOSEVELT. 

136.  The   Beginning  of  Creation,   of  the  Sun  and  Plants,  with 

Strictures    on    the  Cosmogonies    of  DesCartes,  Kant  and 
LaPlace.  By  CLINTON  ROOSEVELT. 

137.  On  the  Tides  of  Lake  Michigan.  By  W.  FERREL. 

138.  On  Redemption  Periods  of  Monetary  Values  which  involve 

Life  Contingencies.  By  E.  B.  ELLIOTT. 

139.  On  the  Metrical  Unification  of  International  Coinage. 

By  E.  B.  ELLIOTT. 

140.  A  Few  Facts  concerning  the  Vital   Statistics  of  Amherst 

College.  By  EDWARD  HITCHCOCK. 

141.  On  the  Archaeological  Value  of  Certain  Ancient  Beads. 

By  L.  G.  OLM STEAD. 

142.  Exhibition  of  a  New  Setenograph.        By  JEROME  ALLEN. 

143.  On    a    New    Method    of  Measurement    Map    Drawing   for 

Schools.  By  JEROME  ALLEN. 

Glaciers  as  Extensive  and  Constant  Geologic  Agencies. 

By  JAMES  HYATT. 
Points  in  the  Geology  of  Hudson  River. 

By  JAMES  HYATT. 

On    Some    of  the    Causes    which    Affect    the    Rapidity    of 
Erosion  of  Rocks  and  of  River  Valleys. 

By  WM.  P.  BLAKE. 

147.  On  the  Interpretation  of  Fossils. 

By  B.  WATEKHOUSE  HAWKINS. 

148.  Notes  on  the  Origin  of  Bitumens,  together  with  Experiments 

upon  the  Formation  of  Asphaltum.     By  S.  F.  PECKHAM. 

149.  Note  on  Epitrochoidal  Teeth.  By  WILLIAM  WATSOX. 


PROGRAMME 


MONDAY,    AUGUST    10,    1868. 


MORNING. 

The  General  Session  will  be  held  in  the  Lecture 
Room  of  the  First  Baptist  Church.  The  fol- 
lowing Papers  will  be  read  : 

1.  The  Fossil   Human  Skull  of  Calaveras  County, 

California.  By  J.  D.  WHITNEY. 

2.  On  the.  Artistic  Evidence  of  the   Remote  Coloni- 

zation of  the  Great  Western  or  American 
Continent,  by  Maritime  People  of  Distinct 
Nationalities  before  the  Modern  Era. 

By  J.  H.  GIBBON. 

To  be  followed  by  a  Discussion  on  the  Antiquity  of 

Man. 
The  meetings  of  the   Sections  will   be   held   in  their 

respective  rooms  in  the  Church   at  two  o'clock, 

P.  M. 

EVENING. 

Entertainment  given  by  the  HON.  J.  YOUNG  SCAM- 
MON,  at  his  residence,  No.  209  Michigan  Avenue. 


STANDING  COMMITTEE. 

DR.  B.  A.  GOULD.  PROF.  J.  S.  NEWBERRY. 

COL.  CHARLES  WHITTLESEY.  PROF.  WOLCOTT  GIBBS. 

PROF.  JOSEPH  LOVERING.  PROF.  C.  S.  LYMAN. 

PROF.  SIMON  NEWCOMB.  DR.  A.  L.   ELWYN. 

PROF.  H.  L.  EUSTIS.  PROF.  H.  A.  NEWTON. 

PROF.  P.  A.  P.  BARNARD.  DR.  C.  C.  PARRY. 

PROF.  P.  D.  TILLMAN.  OR.  J.  H.  RAUCH. 

As  'Chairmen  of  the  Sections: 
SECTION  A.  SECTION  B. 

I'p.oK.  WILLIAM  CHAUVENET.  PHOF.  .1.  D.  WHITNEY. 

ADDITIONAL  MEMBERS 

Chosen  to   unite   with  Standing  Committee  as  a    Council  for 
the  Nomination  of  Officers. 

SECTION  A.  SECTION  B. 

PROF.  ELIAS  LOOMIS,  OF  New  HAVEN.  PROF.  E.  A.  DALRYMPLE,  OF  BALTIMORE. 

PROF.   CLEVELAND  ABBE,  OF  CINCINNATI.  PROF.  0.  C.  MARSH,  OF  NEW  HAVEN. 

PROF.  J.  C.  WATSON,  OF  ANN  AKIIOR.  DR.  C.   A.  WHITE,  OF  IOWA  CITY. 

PROF.  G.  W.  HOUGH,  OF  ALBANY.  COL.  J.  W.  FOSTER,  OF  CHICAGO. 


SUB-COMMITTEES  OF  THE   STANDING   COMMITTEE. 

i .    Committee  on  Nominations  : 

H.  L.  EUSTI8.  C.  C.  PARRY. 

2.    Committee  on  Papers: 

J.  S.  NEWBERRY.  H.  A.  NEWTON. 

3.    Committee  on  Hours  and  Business : 

J.   H.   RAUCH.  JOSEPH  LOVERING. 


NOTICES. 


The  Local  Committee  would  state  that  they  have  been  thus  far 
applied  to  for  Passes  over  the  North- Western  Railroad  only, 
while  excursions  of  great  interest  may  be  made  in  several  other 
directions.  At  Lasalle,  on  the  Illinois  Central  .Railroad,  the  Coal 
Measures  are  to  be  seen  in  contact  with  the  Trenton  Limestone. 
At  Burlington,  on  the  Chicago,  Burlington  and  Qiiincy  Railroad, 
may  be  found  the  Burlington  Limestone,  rich  in  crinoids.  At 
Alton,  on  the  Chicago,  Alton  and  St.  Louis  Railroad,  the  Car- 
boniferous Limestones  are  found  in  connection  with  the  Coal 
Measures.  Along  the  line  of  either  of  the  above  roads  the 
Prairie  country  may  be  seen  in  its  most  perfect  development. 

This  evening,  an  entertainment  will  be  given  to  the  Associ- 
ation by  the  Hon.  J.  YOUNG  SCAMMON,  Chairman  of  the  Local 
Committee,  at  his  residence,  209  Michigan  Avenue,  to  which 
are  invited,  in  addition  to  the  Members  of  the  Association, 
and  their  ladies  and  friends,  the  Members  of  the  Academy  of 
Sciences,  the  Historical  Society,  and  the  Astronomical  Society, 
and  the  Faculties  of  the  Universities  and  Medical  Schools  in 
Chicago  and  vicinity.  Those  who  are  entertaining  Members  of 
the  Association,  with  their  ladies,  are  also  invited. 

To-morrow  (Tuesday)  evening  an  entertainment  will  be  given 
to  the  members  of  the  Association  and  their  friends,  at  the  Sher- 
man House,  by  Messrs.  Gage  Bros,  and  Walters. 


SECTION     A. 
MATHEMATICS,  PHTSICS,  AND  CHEMISTRY. 

Chairman. 
PROF.  WM.  CHAUVENET,  OF  ST.  Louis. 

Secretary. 
PROF.  GEO.  F.  BARKER,  OF  NEW  HAVEN. 

Sectional  Committee. 

PROF.  T.  H.  SAFFORD,  OF  CHICAGO. 
PROF.  BENJ.  SILLIMAN,  OF  NEW  HAVEN. 
PROF.  E.  N.  HORSFORD,  OF  CAMBRIDGE. 


TITLES   OF  PAPERS 

For  Monday,  Augztst  loth,  1868,  in  Section  A. 

\  .  On  the  Mathematical  Investigations  made  for  the  Construction 
of  the  Illinois  and  St.  Louis  Bridge. 

By  WILLIAM  CHAUVENET.     [20  minutes.] 

2.  On  a  Method  of  Measuring  very  Small  Rectilinear  Motions. 

By  WILLIAM  CHAUVENET.     [10  in.] 

3.  On  the  Laws  of  Ocean  Currents. 

By  J.  S.  GRIMES.     [30  m.] 

4.  Hough's  Barometrograph   as  applied  to  the  Investigation  of 

the  Storm  Curve.  By  J.  H.  COFFIN.     [20  m.] 


5.  Remarks    on    the     total     Disturbance    of  the    Barometrical 

Column.      <  By  G.  W.  HOUGH.     [15  m.] 

6.  The  Profiles  of  Blast  Furnaces. 

By  THOMAS  EGLESTON.     [30  m.] 

7.  Fluorine  a  Constituent  of  the  Brain 

By  E.  N.  HORSFORD.     [10  m.] 


49 

8.  The  Nature  of  Electric  Discharge. 

By  O.  N.  STODDARD.     [14  m.] 

9.  On  the  Evaporative  Power  of  the  Sun  near  the  Base  of  the 

Sierra  Nevada,  in  Calaveras  County,  California. 

By  BENJAMIN  SILLIMAN.     [20  m.] 

10.  On  the  Relation  between  the  Atomic  Volume  of  Different 

Metals,    and    their    Paramagnetic  and   Diamagnetic  Pro- 
perties. By  P.  H.  VANDER  WEYDE.     [10  m.] 

1 1 .  On  the  Molecular  Arrangement  of  the  Inorganic  Acids. 

By  GEORGE  F.  BARKER.     [30  m.] 

1 2.  Theory  of  the  Prediction  of  Star  Places. 

By  T.  H.  SAFFORD.     [20  m.] 

13.  Remarks  on  the    Secular   Variations   of  the    Eccentricities 

and  Perihelia  of  the  Eight  Principal  Planets. 

By  J.  N.  STOCKWELL.     [20  m.] 

14.  Description    and  Application  of  the  Heliostat,  and  Method 

of  Running  True  Meridian  Lines  in  Surveying. 

By  MICHAEL  W.  MCDERMOTT.     [20  m.] 

15.  Tides  in  Lakes.  By  H.  A.  NEWTON.     [10  m.] 


SECTION     B. 
GEOLOGY  AND  NATURAL  HISTORY. 

Chairman. 
PROF.  J.  D.  WHITNEY,  OF  CAMBRIDGE,  MASS. 

Secretary. 
PROF.  E.  D.  COPE,  OF  PHILADELPHIA,  PA. 

Sectional  Committee. 

A.  H.  WORTHEN,  OF  SPRINGFIELD,  ILL. 
PROF.  O.  C.  MARSH,  OF  NEW  HAVEN.  CONN. 
PROF.  THEO.  GILL,  OF  WASHINGTON,  D.  C. 


TITLES  OF  PAPERS 

For  Monday,  August  loth,  1868,  at  2  P.M.,  in  Section  B. 

1.  Anatomical  distinction  of  Vegetable  Structure   rectified,  fol- 

lowed by  the  Circuit  of  Generation  of  Fresh  Water   AlgcE. 

By  T.  C.  HILGARD. 

2.  On    Two   New   Fossil   Trees,   the    oldest   known,   found   by 

Rev.  H.  HERZER,  in  the  Devonian  Rocks  of  Ohio. 

By  J.  S.  NEWBERRY. 

3.  On    Elasmognathus    and    its    Relations    to    the    Tapiridie 

generally.  •  By  THEODORE  GILL. 

4.  The  Supposed  Triassic  Foot-marks  in  Kansas. 

By  C.  H.  HITCHCOCK. 

5.  Sketch  of  the  Topography,  Geology  and  Antiquities  of  the 

Caucasus.  By  F.  VON  KOSCHKULL. 

6.  Fossil  Fishes,  Insects,  Crustacea,  etc.,  of  the  Coal  Measures 

of  Grundy  County,  Illinois.  By  A.  H.  WORTHEN. 

7.  On  the  Preservation  of  Color  in  Fossils  from  Palagoxoic  For- 

mations. By  O.  C.  MARSH. 


S.  On  the  Gradual  Dessication  of  the  Western  Portions  of  North 

America.  By  W.  P.  BLAKE. 

9.  Superficial  Geology  of  the  Lake  Shore  near  Chicago. 

By  J.  S.  JEWELL. 

10.  The  Yosemite  Valley.  .         By  J.  D.  WHITNEY. 

11.  On  the  Occurrence  of  the  Mastodon  in  the  Deep- Lying  Gold 

Placers  of  California.  By  BENJAMIN  SILLIMAN. 


PROGRAMME 


FOR,. 


TUESDAY,    AUGUST    nth,    1868. 


MORNING. 

The  General  Session  will  be  held  in  the  Lecture 
Room  of  the  First  Baptist  Church.  The  fol- 
lowing Paper  will  be  read: 

On  the  Artistic  Evidences  of  a  Remote  Colonization 
on  the  Great  Western  or  American  Continent, 
by  Maritime  People  of  Distinct  Nationalities 

before  the  Modern  Era. 

By  J.  H.  GIBBON. 

EVENING. 

Entertainment  given  to  the  members  of  the  Associa- 
tion and  their  friends,  by  Messrs.  GAGE  BROS. 
and  WALTERS,  at  the  Sherman  House. 


STANDING  COMMITTEE. 


DR.  B.  A.  GOULD.  PROF.  J.  S.  NEWBERRY. 

COL.  CHARLES  WHITTLESEY.  PROF.  WOLCOTT  GIBBS. 

PROF.  JOSEPH  LOVERING.  PROF.  C.  S.  LYMAN. 

PROF.  SIMON  NEWCOMB.  DR.  A.  L.   ELWYN. 

PROF.  H.  L.  EUSTIS.  PROF.  H.  A.  NEWTON. 

PROF.  F.  A.  P.  BARNARD.  DR.  C.  C.  PARRY. 

PROF.  S.  D.  TILLMAN.  DR.  J.  H.  RAUCH. 

As  Chairmen  of  the  Sections: 
SECTION  A.  SECTION  B. 

PROF.  WILLIAM  CHAUVENET.  PROF.  J.  D.  WHITNEY. 

ADDITIONAL  MEMBERS 

Chosen  to   unite   'with  Standing  Committee  as  a    Council  for 
the  Nomination  of  Officers. 

SECTION  A.  SECTION  B. 

PROF.  ELI  AS  LOOMIS,  OF  NEW  HAVEN.  PROF.  E.  A.  DALRYMPLE,  OF  BALTIMORE. 

PROF.   CLEVELAND  ABBE,  OF  CINCINNATI.  PROF.  O.  C.  MARSH,  OF  NEW  HAVEN. 

PROF.  J.  C.  WATSON,  OF  ANN  ARBOR.  DR.  C.  A.  WHITE,  OF  IOWA  CITY. 

PROF.  G.  W.  HOUGH,  OF  ALBANY.  COL.  J.  W.  FOSTER,  OF  CHICAGO. 


SUB-COMMITTEES  OF  THE   STANDING   COMMITTEE. 
I.    Committee  on  Nominations: 

H.  L.  EUSTIS.  C.  C.  PARRY. 

2.    Committee  on  Papers: 

J.  S.  NEWBERRY.  H.   A.  NEWTON. 

3.    Committee  on  Hours  and  Business: 

J.  H.  RAUCH.  JOSEPH  LOVERING. 


NOTICES. 


An  entertainment  will  be  given  this  evening  to  the  Association, 
by  Messrs.  GAGE,  BROS,  and  WALTERS,  at  the  Sherman  House. 
To  this  entertainment  are  invited,  in  addition  to  the  Members  of  the 
Association,  and  their  ladies  and  the  friends  entertaining  them,  the 
Members  of  the  Academy  of  Sciences,  the  Historical  Society,  and 
the  Astronomical  Society,  and  the  Faculties  of  the  University 
and  Medical  Schools  in  Chicago  and  vicinity,  the  Officers  of  the 
Young  Men's  Association,  the  gentlemen  of  the  Chicago  Press, 
and  the  Officers  of  Railroad  Companies  centering  in  Chicago. 

The  new  members,  recently  elected,  are  requested  to  come  to 
the  office  of  the  Permanent  Secretary  and  Treasurer,  Parlor  No. 
3  Sherman  House,  to  register  their  names,  and  pay  their  dues, 
if  they  have  not  already  done  so. 


SECTION     A. 
MATHEMATICS,  PHTSICS,  AND  CHEMISTRY. 

Chairman. 
PROF.  WM.  CHAUVENET,  OF  ST.  Louis. 

Secretary. 
PROF.  GEO.  F.  BARKER,  OF  NEW  HAVEN. 

Sectional  Committee. 

PROF.  T.  H.  SAFFORD,  OF  CHICAGO. 
PROF.  BENJ.  SILLIMAN,  OF  NEW  HAVEN. 
PROF.  E.  N.  HORSFORD,  OF  CAMBRIDGE. 


TITLES   Of  PAPERS 

for  Tuesday,  August  \\th,  1868,  in  Section  A. 

1 .  The  Nature  of  Electric  Discharge. 

By  O.  N.  STODDARD.     [14  m.] 

2.  On  the  Evaporative  Power  of  the  Sun  near  the  Base  of  the 

Sierra  Nevada,  in  Calaveras  County,  California. 

By  BENJAMIN  SILLIMAN.     [20  m.] 

3.  On  the  Relation  between  the  Atomic  Volume  of  Different 

Metals,    and   their    Paramagnetic  and  Diamagnetic  Pro- 
perties. By  P.  H.  VANDER  WEYDE.     [10  m.] 

4.  On  the  Molecular  Arrangement  of  the  Inorganic  Acids. 

By  GEORGE  F.  BARKER.     [30  m.] 

5.  Theory  of  the  Prediction  of  Star  Places. 

By  T.  H.  SAFFORD.     [20  m.] 


57 

6.  Remarks  on  the   Secular   Variations   of  the    Eccentricities 

and  Perihelia  of  the  Eight  Principal  Planets. 

By  J.  N.  STOCKWELL. 

7.  Description    and  Application  of  the  Heliostat,  and  Method 

of  Running  True  Meridian  Lines  in  Surveying. 

By  MICHAEL  W.  MCDERMOTT. 

8.  Tides  in  Lakes.  By  H.  A.  NEWTON. 

9.  On  the  Tides  of  Lake  Michigan.  By  W.  FERREL. 

10.  Notes  on  the  Defects  of  Lightning  Rods. 

By  JAMES  BUSIIEE. 

11.  Some  New  Facts  and  Views  concerning  Aluminum. 

By  HENRY  WURTZ. 

12.  The  Application  of  Carbonic  Acid  Gas,  in  the  Extinguish- 

ment of  Fire.  By  E.  L.  BUTTRICK. 

13.  Atomic  Motion.  By  H.  F.  WALLING. 

14.  The  Higher  Law  of  Correlation.         By  O.  N.  STODDARD. 

15.  The  Periodic  Law  in  the  Failure  of  Harvests  and  Inunda- 

tions, with  Suggestions  as  to  their  Insurance. 

By  GEORGE  A.  LEAKIN. 

1 6.  On  Methods  of  Amalgamation  in    the    Treatment  of  Gold 

Ores.  By  BENJAMIN  SILLIMAN. 

1 7.  On  Redemption  Periods  of  Monetary  Values  which  involve 

Life  Contingencies.  By  E.  B.  ELLIOTT. 

1 8.  On  the  Metrical  Unification  of  International  Coinage. 

By  E.  B.  ELLIOTT. 

19.  Exhibition  of  a  New  Selenograph.          By  JEROME  ALLEN. 

20.  On   a   New   Method   of  Measurement    Map    Drawing   for 

Schools.  By  JEROME  ALLEN. 

21.  Notes  on  the  Origin  of  Bitumens,  together  with  Experiments 

upon  the  Formation  of  Asphaltum.     By  S.  F.  PECKHAM. 

22.  Note  on  Epitrochoidal  Teeth.  By  WILLIAM  WATSON. 

23.  Remarks  on  the  Galvanic  Battery.  By  G.  W.  HOUGH. 

24.  On  a  Proposed  New  Mechanism  for  the  Study  of  Galvanic 

Batteries.  By  G.  W.  HOUGH. 


SECTION     B. 

GEOLOGY  AND  NA  TURAL  HIS  TOR  Y. 

Chairman. 
PROF.  J.  D.  WHITNEY,  OF  CAMBRIDGE,  MASS. 

Secretary. 
PROF.  E.  D.  COPE,  OF  PHILADELPHIA,  PA. 

Sectional  Committee. 

A.  H.  WORTHEN,  OF  SPRINGFIELD,  ILL. 
PROF.  O.  C.  MARSH,  OF  NEW  HAVEN,  CONN. 
PROF.  THEO.  GILL,  OF  WASHINGTON,  D.  C. 


TITLES  OF  PAPERS 

For  Tuesday,  August  nth,  1868,  in  Section  B. 

MORNING. 

1.  On  the   Geology    of    the   Mississippi   Delta,  and     the    Salt 

Deposit  of  Petite  Anse.  By  EUGENE  W.  HILGARD. 

2.  Fossil  Fishes,  Insects,  Crustacea,  etc.,  of  the  Coal  Measures 

of  Grundy  County,  Illinois.  By  A.  H.  WORTHEN. 

3.  On  the  Preservation  of  Color  in  Fossils  from  Palaeozoic  For- 

mations. By  O.  C.  MARSH. 

4.  Relations  of  the  Metamorphoses  of  the  Phosphates  to  Waste 

and  Repair.  By  E.  N.  HORSFORD. 

5.  On  the  Gradual  Dessication  of  the  Western  Portions  of  North 

America.  By  W.  P.  BLAKE. 

6.  The  Yosemite  Valley.  By  J.  D.  WHITNEY. 


59 

EVENING. 

7.  On  the  Old  Lake  Beds  of  the  Prairie  Region. 

By  S.  J.  WALLACE. 

8.  Origin  of  the  Prairies.  By  J.  W.  FOSTER. 

9.  On  the  Formation  of  Shells  and  Belemnites,  and  Phosphates 

of  Iron  at  Mulica  Hill,  Gloucester  County,  N.  J. 

By  A.  B.  ENGSTROM. 

10.  Superficial  Geology  of  the  Lake  Shore  near  Chicago. 

By  J.  S.  JEWELL. 

1 1 .  On  Certain  Physical  Features  of  the  Mississippi  River. 

By  G.  K.  WARREN. 

12.  On  the  Surface  Geology  of  the  Basin  of  the  Great  Lakes  and 

the  Upper  Mississippi  Valley.          By  J.  S.  NEWBERRY. 

13.  Some  Points  in  the  Surface  Geology  of  the  Western  Side  of 

the  American  Continent.  By  J.  D.  WHITNEY. 

14.  On  the  Fuel  Resources  of  Illinois.       By  A.  H.  WORTHEN. 

15.  On  the  Source  of  Muscular  Power.      By  E.  N.  HORSFORD. 

1 6.  The  Vertebral  Type  of  the  Cranium  a  Quinary  one. 

By  T.  C.  HILGARD. 

17.  The  Darwinian  Theory  of  Development. 

By  CHARLES  MORAN. 

1 8.  On  the   Geological   Age   and  Equivalents  of  the   Marshall 

Group.  By  A.  WINCHELL. 


TITLES  OF  PAPERS  ALREADY  ENTERED. 


150.  On  the  New  Arctic  Continent.        By  W.  W.  WHEILDON. 

151.  On  the  Preservation  of  Meats.  By  JOHN  GAMGEE. 


ARRIVAL  S. 


216.  WILLIAM  STIMPSON,  Secretary  of  the  Academy  of  Sciences, 
Chicago. 

217.  T.  C,  •  DUNCAN,  Physician,  Chicago — 26^  W.  Randolph 
Street. 

218.  E.  L.  BUTTRICK,  Attorney,  Chicago — Clifton  House. 

219.  S.  V.  R.  HICKCOX,  Editor,  Chicago  —  Richmond  House. 

220.  EDWARD    DANIELS,    Geologist    and    Mining    Engineer. 
Chicago  —  287  Park  Avenue. 

221.  G.  K.  WARREN,  U.  S.  Army  Corps  of  Engineers.  New 
York.    • 

222.  E.  B.  ELLIOTT,  U.  S.  Treasury.  Washington,  D.  C. 

223.  W.  C.  AUNT,  Physician  and  Microscopist,  Chicago — 271" 
Erie  Street. 

224.  ROBERT  H.  BROWNNE,  Teacher,  New  York. 

225.  WALTER    KATTE,    Civil   Engineer,   Chicago  —  Sherman 
House. 

226.  BELDEN    F.    CULVER,    Merchant.    Chicago  —  Sherman 
House. 

227.  EDWIN  M.  HALE,  Physician,  Chicago  —  65  Twenty-second 
Street. 

228.  HENRY    M.    STORRS,     Clergyman,    Brooklyn  —  Tremont 
House. 

229.  ALEXANDER  REED,  Clergyman.  Philadelphia  —  Tremont 
House. 


